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1.
Тонкие пленки железогадолиниевых
сплавов [Текст] / Л. В. Киренский [и др.]> //
Изв. АН СССР, Сер. физич. - 1965. -
Т. 29
,
№ 4
. - С. 689-694. - Библиогр.: 12 назв. - Phys. Abstr. - 1966. - Vol. 69, 31713
Перевод заглавия:
Thin films of iron-
gadolinium
alloys
Смотреть статью
Держатели документа:
Институт физики им. Л.В. Киренского СО РАН
Доп.точки доступа:
Киренский, Леонид Васильевич; Kirenskii, L. V.; Неделько, А. А.; Буравихин, Виктор Анатольевич; Пузей, Иван Михайлович; Всесоюзный симпозиум по физике тонких ферромагнитных пленок(2 ; 1964 ; июль ; 10-15 ; Иркутск)
}
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2.
Gd3Ga5O12:Nd3+ crystals for
a continuous-wave diode-pumped laser operating in 4F3/2 4I11/2 and 4F3/2 4I13/2 channels / A. A. Kaminskii [et al.]> // Crystallogr. Rep. - 2002. -
Vol. 47
,
Is. 2
. - P. 308-312,
DOI
10.1134/1.1466508. - Cited References: 15 . - ISSN 1063-7745
Рубрики:
GALLIUM GARNET
EMISSION
Кл.слова (ненормированные):
gadolinium
--
gallium
--
neodymium
--
article
--
concentration response
--
crystal
--
pump
--
spectroscopy
--
X ray
--
x ray topography
Аннотация:
Garnet crystals of the composition Gd3Ga5O12:Nd3+ (concentration series CNd = 1-10 at. %) were grown from flux. In terms of spectroscopy, these crystals, unlike those grown from melts, form a medium with a single activator center. For the first time, continuous-wave lasing was excited by diode pumping with the use of Gd3Ga5O12:Nd3+ crystals at the wavelengths ?3 = 1.3315 and ?4 = 1.3370 ?m of the 4F3/2 > 4I13/2 channel and also the simultaneous generation at two wavelengths, ?1 = 1.0621 and ?2 = 1.0600 ?m, of the 4F3/2 > 4I11/2 channel. В© 2002 MAIK "Nauka/Interperiodica".
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Другая переводная версия
Crystals Gd3Ga5O12:Nd3+ for a continuous-wave diode-pumped laser operating in 4F3/24I11/2 and 4F3/24I13/2 channels [Текст] / A. A. Kaminskij [и др.] // Kristallogr. - 2002. - Vol. 47 Is. 2.- P.344-349 ; Crystallogr. Rep.
Публикация на русском языке
Раствор-расплавные кристаллы Gd3Ga5O12:Nd3+ для непрерывных лазеров (4F3/2→4I11/2 и 4F3/2→4I13/2 каналы) с диодно-лазерной накачкой [Текст] / А. А. Каминский [и др.] // Кристаллография. - 2002. - Т. 47 Вып. 2. - С. 344-348
Держатели документа:
Shubnikov Inst. of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow 117333, Russian Federation
Доп.точки доступа:
Kaminskii, A. A.; Butashin, A. V.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Temerov, V. L.; Темеров, Владислав Леонидович; Kravtsov, N. V.; Firsov, V. V.; Seo, D. T.; Hommerich, U.; Temple, D.; Braud, A.
}
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3.
Magnetic and optical
properties and electron paramagnetic resonance of
gadolinium
-containing oxide glasses / J. . Kliava [et al.]> // J. Phys.: Condens. Matter. - 2003. -
Vol. 15
,
Is. 40
. - P. 6671-6681,
DOI
10.1088/0953-8984/15/40/005. - Cited References: 30 . - ISSN 0953-8984
РУБ
Physics, Condensed Matter
Рубрики:
ABSORPTION-SPECTRA
FARADAY-ROTATION
SPIN-RESONANCE
IONS
GD3+
SPECTROSCOPY
BEHAVIOR
GD-3
Кл.слова (ненормированные):
Doping (additives)
--
Electronic structure
--
Glass
--
Lanthanum compounds
--
Light absorption
--
Magnetic susceptibility
--
Oxides
--
Paramagnetic resonance
--
Positive ions
--
Rate constants
--
Substitution reactions
--
Absorption band
--
Gadolinium
containing oxide glasses
--
Positive Weiss constants
--
Gadolinium
compounds
Аннотация:
Magnetic susceptibility, electron paramagnetic resonance (EPR) and optical absorption have been studied in a glass system 20La(2)O(3)-22Al(2)O(3)-23B(2)O(3)-35(SiO2 + GeO2) with a part of La2O3 substituted by Gd2O3 in different concentrations. Positive Weiss constants have been found in more heavily doped glasses and ascribed to clustering of Gd3+ ions. Computer simulations of the EPR spectra show that the short-range ordering in the environment of the Gd3+ ions is well preserved. The relative distribution widths of the ligand coordinates are less than 2%. In the more heavily doped glasses the EPR spectra are superpositions of signals arising from isolated ions and ferromagnetic clusters. The increase of Gd3+ concentration is shown to change substantially the strong optical absorption edge while only small changes of f-f absorption band characteristics are observed. This difference is associated with the different effect of the Gd ion clustering on the mechanisms of the strong absorption in the ultraviolet region and the f-f absorption.
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Держатели документа:
Univ Bordeaux 1, CPMOH, F-33405 Talence, France
SI Vavilov State Opt Inst, St Petersburg 199034, Russia
Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
RAS, SB, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
CPMOH, Universite Bordeaux-I, 33405 Talence Cedex, France
L V Kirensky Inst. of Physics, SB RAS, Krasnoyarsk 660036, Russian Federation
Bar-Ilan University, Department of Physics, Ramat-Gan 52900, Israel
Bar-Ilan University, Department of Chemistry, Ramat-Gan 52900, Israel
S V Vavilov State Optical Institute, St Petersburg 199034, Russian Federation
Доп.точки доступа:
Kliava, J.; Edelman, I. S.; Эдельман, Ирина Самсоновна; Potseluyko, A. M.; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Berger, R.; Bruckental, I.; Yeshurun, Y.; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Zarubina, Y. V.
}
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4.
Spin-glass-like behavior of
low field magnetisation in multilayer (Gd/Si/Co/Si)(n) films / G. S. Patrin [et al.]> // Phys. Lett. A. - 2003. -
Vol. 309
,
Is. 1-2
. - P. 155-159,
DOI
10.1016/S0375-9601(03)00169-5. - Cited References: 13 . - ISSN 0375-9601
РУБ
Physics, Multidisciplinary
Рубрики:
BIQUADRATIC EXCHANGE
Кл.слова (ненормированные):
cobalt
--
gadolinium
--
glass
--
silicon
--
silicon derivative
--
acceleration
--
article
--
film
--
magnetic field
--
magnetism
--
molecular dynamics
--
molecular interaction
Аннотация:
The results of experimental investigations of magnetic properties of multilayer (Gd/Si/Co/Si)(n) films in low magnetic fields are represented. The spin-glass-like behavior of magnetization is found. The role of biquadratic exchange coupling in a forming of magnetic state of system is discussed. (C) 2003 Elsevier Science B.V. All rights reserved.
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Держатели документа:
Russian Acad Sci, LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
Ural State Univ, Ekaterinburg 620083, Russia
ИФ СО РАН
L. V. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk State University, prospect Svobodnyi, 79, Krasnoyarsk 660041, Russian Federation
Ural State University, prospect Lenina, 51, Ekaterinburg 620083, Russian Federation
Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Vas'kovskii, V. O.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Svalov, A. V.; Panova, M. A.
}
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5.
Linear and nonlinear
optical spectroscopy of
gadolinium
iron borate GdFe3(BO3)(4) / A. M. Kalashnikova [et al.]> // JETP Letters. - 2004. -
Vol. 80
,
Is. 5
. - P. 293-297,
DOI
10.1134/1.1825108. - Cited References: 26 . - ISSN 0021-3640
РУБ
Physics, Multidisciplinary
Рубрики:
ORTHOFERRITES
Аннотация:
The optical spectra and the second-harmonic generation (SHG) are studied in a noncentrosymmetric GdFe3(BO3)(4) magnet. In the region of weak absorption (alpha similar to 20-400 cm(-1)) below similar to3 eV, three absorption bands are distinguished, which can be unambiguously assigned to forbidden electronic transitions from the ground (6)A(1) state of the Fe3+ ion to its excited states T-4(1) (similar to1.4 eV), T-4(2) (similar to2 eV), and (4)A(1), E-4 (similar to2.8 eV). Intense absorption begins in the region above 3 eV (alpha similar to 2-4 x 10(5) cm(-1)), where two bands at similar to4.0 and 4.8 eV are observed, which are caused by allowed electric dipole charge-transfer transitions. The spectral features of SHG in the 1.2-3.0-eV region are explained by a change in the SHG efficiency caused by a change in the phase mismatch. It is shown that in the weak absorption region, phase matching can be achieved for SHG. (C) 2004 MAIK "Nauka / Interperiodica".
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Держатели документа:
Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia
Russian Acad Sci, Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
Univ Dortmund, D-44227 Dortmund, Germany
Univ Nijmegen, NSRIM Inst, NL-6525 Nijmegen, Netherlands
ИФ СО РАН
Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russian Federation
Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Experimental Physics II, Dortmund University, Dortmund, 44227, Germany
NSRIM Institute, University of Nijmegen, 6525, Netherlands
Доп.точки доступа:
Kalashnikova, A. M.; Pavlov, V. V.; Pisarev, R. V.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Bayer, M.; Rasing, T.
}
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6.
Antiferromagnetic resonance and
phase diagrams of
gadolinium
ferroborate GdFe3(BO3)(4) / A. I. Pankrats [et al.]> // J. Exp. Theor. Phys. - 2004. -
Vol. 99
,
Is. 4
. - P. 766-775,
DOI
10.1134/1.1826168. - Cited References: 16 . - ISSN 1063-7761
РУБ
Physics, Multidisciplinary
Кл.слова (ненормированные):
Anisotropy
--
Antiferromagnetic materials
--
Antiferromagnetism
--
Phase diagrams
--
Resonance
--
Single crystals
--
Antiferromagnetic resonance
--
Antiferromagnets
--
Crystal axis
--
Transition fields
--
Gadolinium
compounds
Аннотация:
Antiferromagnetic resonance in single crystals of rhombohedral
gadolinium
ferroborate GdFe3(BO3)(4) was studied. The frequency-field dependences of antiferromagnetic resonance over the frequency range 26-70 GHz and the temperature dependences of resonance parameters for magnetic fields oriented along the crystal axis and in the basal plane were determined. It was found that the iron subsystem, which can be treated as a two-sublattice antiferromagnet with anisotropy of the easy-plane type, experienced ordering at T = 38 K. At temperatures below 20 K, the
gadolinium
subsystem with the opposite anisotropy sign strongly influenced the anisotropic properties of the crystal. This resulted in a spontaneous spin-reorientation transition from the easy-plane to the easy-axis state at 10 K. Below 10 K, magnetic field-induced transitions between the states were observed. Experimental phase diagrams on the temperature-magnetic field plane were constructed for fields oriented along the crystal axis and in the basal plane. A simple model was used to calculate the critical transition fields. The results were in close agreement with the experimental values measured at T = 4.2 K for both field orientations. (C) 2004 MAIK "Nauka / Interperiodica".
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Держатели документа:
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Pankrats, A. I.; Панкрац, Анатолий Иванович; Petrakovskii, G. A.; Петраковский, Герман Антонович; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Bayukov, O. A.; Баюков, Олег Артемьевич
}
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7.
Structural and electronic
transitions in
gadolinium
iron borate GdFe3(BO3)(4) at high pressures / A. G. Gavriliuk [et al.]> // JETP Letters. - 2004. -
Vol. 80
,
Is. 6
. - P. 426-432,
DOI
10.1134/1.1830662. - Cited References: 20 . - ISSN 0021-3640
РУБ
Physics, Multidisciplinary
Рубрики:
TRIGONAL GDFE3(BO3)(4)
RM(3)(BO3)(4) CRYSTALS
OPTICAL-SPECTRA
BAND-STRUCTURE
FEBO3
GROWTH
Аннотация:
The optical properties and structure of
gadolinium
iron borate GdFe3(BO3)(4) crystals are studied at high pressures produced in diamond-anvil cells. X-ray diffraction data obtained at a pressure of 25.6 GPa reveal a first-order phase transition retaining the trigonal symmetry and increasing the unit cell volume by 8%. The equation of state is obtained and the compressibility of the crystal is estimated before and after the phase transition. The optical spectra reveal two electronic transitions at pressures similar to26 GPa and similar to43 GPa. Upon the first transition, the optical gap decreases jumpwise from 3.1 to similar to2.25 eV. Upon the second transition at P = 43 GPa, the optical gap deceases down to similar to0.7 eV, demonstrating a dielectric-semiconductor transition. By using the theoretical model developed for a FeBO3 crystal and taking into account some structural analogs of these materials, the anomalies of the high-pressure optical spectra are explained. (C) 2004 MAIK "Nauka/Interperiodica".
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Держатели документа:
Russian Acad Sci, Inst High Pressure Phys, Troitsk 142092, Moscow Region, Russia
Russian Acad Sci, Inst Crystallog, Moscow 119333, Russia
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Max Planck Inst Chem, D-55020 Mainz, Germany
ИФ СО РАН
Доп.точки доступа:
Gavriliuk, A. G.; Kharlamova, S. A.; Lyubutin, I. S.; Troyan, I. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Potseluiko, A. M.; Eremets, M. I.; Boehler, R.
}
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8.
Studies of magnetic
and optic properties of rare-earth gallo-ferroborates by Mossbauer and optical spectroscopy / O. A. Bayukov [et al.]> // Physica B. - 2005. -
Vol. 359
: International Conference on Strongly Correlated Electron Systems (SCES 04) (JUL 26-30, 2004, Karlsruhe, GERMANY). - P. 1321-1323,
DOI
10.1016/j.physb.2005.01.397. - Cited References: 3 . - ISSN 0921-4526
РУБ
Physics, Condensed Matter
Кл.слова (ненормированные):
strongly correlated electron system
--
antiferromagnets
--
borates
--
Antiferromagnets
--
Borates
--
Strongly correlated electron system
--
Antiferromagnetism
--
Cryostats
--
Energy gap
--
Magnetic moments
--
Magnetic properties
--
Mossbauer spectroscopy
--
Optical properties
--
Single crystals
--
Borates
--
Coulomb correlations
--
Liquid helium
--
Strongly correlated electron systems
--
Gadolinium
compounds
Аннотация:
Magnetic and optical properties of GdFe3-xGax(BO3)(4) single crystals are investigated by Mossbauer and optical spectroscopy. The GdFe3(BO3)(4) multielectron band structure model is derived. A high- and low-spin crossover of Fe3+ ion, a collapse of the magnetic moment, the suppression of Coulomb correlations, and insulator-semiconductor transition are predicted. The jump of an energy gap is measured at pressure 43 GPa. (c) 2005 Elsevier B.V. All rights reserved.
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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk, Russia
Inst High Pressure Phys, Troitsk 142190, Russia
Inst Crystallog, Moscow 117333, Russia
Univ Liverpool, Liverpool L69 3BX, Merseyside, England
ИФ СО РАН
LV Kirensky Institute of Physics, Siberian Branch of RAS, Krasnoyarsk, Russian Federation
Institute of High Pressure Physics, 142190, Troisk, Moscow region, Russian Federation
Institute of Crystallograhy, Leninsky Av. 59, 117333, Moscow, Russian Federation
The University of Liverpool, Liverpool L69 3BX, United Kingdom
Доп.точки доступа:
Bayukov, O. A.; Баюков, Олег Артемьевич; Gavrilyuk, A. M.; Zabluda, V. N.; Заблуда, Владимир Николаевич; Lyubutin, I. S.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Potseluyko, A. M.; Tomas, M.; Trojan, I. A.; Kharlamova, S. A.
}
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9.
Optical transitions in
GdFe3(BO3)(4) and FeBO3 under high pressures / A. G. Gavriliuk [et al.]> // J. Phys.: Condens. Matter. - 2005. -
Vol. 17
: 2nd International Symposium on Physics of Solids Under High Presure Using Nuclear Probes (JUL 22-25, 2004, Cologne, GERMANY),
Is. 48
. - P. 7599-7604,
DOI
10.1088/0953-8984/17/48/011. - Cited References: 8 . - ISSN 0953-8984
РУБ
Physics, Condensed Matter
Рубрики:
ELECTRONIC-STRUCTURE
Кл.слова (ненормированные):
Band structure
--
Coulomb blockade
--
High pressure effects
--
Iron compounds
--
Magnetic moments
--
Mathematical models
--
Optical properties
--
Relaxation processes
--
Coulomb correlations
--
Electron correlations
--
Insulator-semiconductor transitions
--
Optical transitions
--
Gadolinium
compounds
Аннотация:
The optical properties of GdFe3(BO3)(4) under high pressures have been investigated experimentally and theoretically, and the results are compared with the properties of FeBO3. A model of the GdFe3(BO3)(4) band structure is derived within the multielectron model taking into account the strong electron correlations. Crossover of the Fe3+ ion high-spin and low-spin states, collapse of the magnetic moment, the relaxation Coulomb correlations, and insulator-semiconductor transition are predicted. Optical transitions in GdFe3(BO3)(4) and FeBO3 under high pressures were discovered.
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Держатели документа:
RAS, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
RAS, Inst Crystallog, Moscow 119333, Russia
RAS, Inst High Pressure Phys, Troitsk 142190, Russia
ИФ СО РАН
Institute of Crystallography, RAS, 119333, Moscow, Russian Federation
Institute for High Pressure Physics, RAS, 142190, Troitsk, Russian Federation
L V Kirensky Institute of Physics, Siberian Branch, RAS, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Gavriliuk, A. G.; Kharlamova, S. A.; Lyubutin, I. S.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Potseluyko, A. M.; Trojan, I. A.; Zabluda, V. N.; Заблуда, Владимир Николаевич
}
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10.
Unusual magnetic transitions
and nature of magnetic resonance spectra in oxide glasses containing
gadolinium
/ J. . Kliava [et al.]> // Phys. Rev. B. - 2005. -
Vol. 71
,
Is. 10
. - Ст. 104406,
DOI
10.1103/PhysRevB.71.104406. - Cited References: 40 . - ISSN 1098-0121
РУБ
Physics, Condensed Matter
Рубрики:
ELECTRON-PARAMAGNETIC-RESONANCE
BORATE GLASSES
IONS
BEHAVIOR
GD3+
SPECTROSCOPY
SYSTEMS
GD-3+
FIELD
SHAPE
Кл.слова (ненормированные):
gadolinium
--
glass
--
lanthanide
--
oxide
--
anisotropy
--
article
--
chemical structure
--
concentration response
--
electron spin resonance
--
energy
--
magnetism
--
molecular physics
--
nanoparticle
--
phase transition
--
refraction index
--
temperature sensitivity
Аннотация:
Magnetic susceptibility, electron paramagnetic resonance (EPR), and optical properties have been studied in a glass system {20La(2)O(3)-22Al(2)O(3)-23B(2)O(3)-35(SiO2+GeO2)} with a part of La2O3 substituted by Gd2O3 in different concentrations. Positive Weiss constants have been found in the more heavily doped glasses and ascribed to clustering of Gd3+ ions. Two magnetic phase transitions at 55 and 12 K were detected and ascribed, respectively, to ferromagnetic and antiferromagnetic clusters containing Gd ions. The overall shape of the EPR spectra shows the presence of clustering at the higher Gd contents. At low temperatures the cluster-related resonance signal is altered in shape, indicating an onset of magnetic anisotropy field. This signal is convincingly fitted to superparamagnetic resonance arising from ferromagnetic nanoparticles. The clustering, depending on the Gd concentration, correlates with a significant shift to lower energies of the strong optical absorption band edge, ascribed to a charge transfer transition between Gd ions. A nonmonotonous change of refractive index with the increase of the Gd content indicates changes in the glass matrix and in Gd cluster structure.
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Держатели документа:
Univ Bordeaux 1, CNRS, UMR 5798, CPMOH, F-33405 Talence, France
Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
RAS, SB, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
SI Vavilov State Opt Inst, St Petersburg 199034, Russia
Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
ИФ СО РАН
CPMOH, UMR 5798, CNRS-Universite Bordeaux-I, 33405 Talence Cedex, France
Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
L. V. Kirensky Institute of Physics SB RAS, Krasnoyarsk 660036, Russian Federation
S. V. Vavilov State Optical Institute, St. Petersburg 199034, Russian Federation
Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel
Доп.точки доступа:
Kliava, J.; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Edelman, I. S.; Эдельман, Ирина Самсоновна; Potseluyko, A. M.; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Melnikova, S.V.; Мельникова, Светлана Владимировна; Zarubina, T. V.; Petrovskii, G.; Bruckental, Y.; Yeshurun, Y.
}
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11.
Spin reorientation effects
in GdFe3(BO3)(4) induced by applied field and temperature / S. A. Kharlamova [et al.]> // J. Exp. Theor. Phys. - 2005. -
Vol. 101
,
Is. 6
. - P. 1098-1105,
DOI
10.1134/1.2163925. - Cited References: 14 . - ISSN 1063-7761
РУБ
Physics, Multidisciplinary
Рубрики:
RM(3)(BO3)(4) CRYSTALS
GROWTH
Кл.слова (ненормированные):
Antiferromagnetism
--
Ground state
--
Magnetic moments
--
Magnetic properties
--
Mossbauer spectroscopy
--
Single crystals
--
Temperature distribution
--
Spin orientation
--
Static magnetic measurements
--
Gadolinium
compounds
Аннотация:
Magnetic properties of GdFe3(BO3)(4) single crystals were investigated by Fe-57-Mossbauer spectroscopy and static magnetic measurements. In the ground state, the GdFe3(BO3)(4) crystal is an easy-axis compensated antiferromagnet, but the easy axis of iron moments does not coincide with the crystal C-3 axis, deviating from it by about 20 degrees. The spontaneous and field-induced spin reorientation effects were observed and studied in detail. The specific directions of iron magnetic moments were determined for different temperatures and applied fields. Large values of the angle between the Fe3+ magnetic moments and the C-3 axis in the easy-axis phase and between Fe3+ moments and the a(2) axis in the easy-plane phase reveal the tilted antiferromagnetic structure. (c) 2005 Pleiades Publishing, Inc.
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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Liverpool, Liverpool L69 3BX, Merseyside, England
Inst Crystallog, Moscow 119333, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
University of Liverpool, L69 3BX, Liverpool, United Kingdom
Institute of Crystallography, Moscow, 119333, Russian Federation
Доп.точки доступа:
Kharlamova, S. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Balaev, A. D.; Балаев, Александр Дмитриевич; Thomas, M. F.; Lyubutin, I. S.; Gavriliuk, A. G.
}
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12.
Magnetoelectric effects in
gadolinium
iron borate GdFe3(BO3)(4) / A. K. Zvezdin [et al.]> // JETP Letters. - 2005. -
Vol. 81
,
Is. 6
. - P. 272-276,
DOI
10.1134/1.1931014. - Cited References: 23 . - ISSN 0021-3640
РУБ
Physics, Multidisciplinary
Рубрики:
OPTICAL SPECTROSCOPY
TRANSITIONS
POLARIZATION
PHASE
Аннотация:
Magnetoelectric interactions have been investigated in a single crystal of
gadolinium
iron borate GdFe3(BO3)(4), whose macroscopic symmetry is characterized by the crystal class 32. Using the results of this study, the interplay of magnetic and electric orderings occurring in the system has been experimentally revealed and theoretically substantiated. The electric polarization and magnetostriction of this material that arise in spin-reorientation transitions induced by a magnetic field have been investigated experimentally. For H parallel to c and H perpendicular to c, H-T phase diagrams have been constructed, and a strict correlation between the changes in the magnetoelectric and magnetoelastic properties in the observed phase transitions has been ascertained. A mechanism of specific noncollinear antiferroelectric ordering at the structural phase transition point was proposed to interpret the magnetoelectric behavior of the system within the framework of the symmetry approach in the entire temperature range. This ordering provides the conservation of the crystal class of the system when the temperature decreases to the antiferroelectric ordering point. The expressions that have been obtained for the magnetoelectric and magnetoelastic energy describe reasonably well the behavior of
gadolinium
iron borate observed experimentally. (C) 2005 Pleiades Publishing, Inc.
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Держатели документа:
Moscow MV Lomonosov State Univ, Moscow 119992, Russia
Russian Acad Sci, Inst Gen Phys, Moscow 119991, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siverian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Moscow State University, Vorob'evy gory, Moscow, 119992, Russian Federation
Institute of General Physics, Russian Academy of Sciences, Moscow, 119991, Russian Federation
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Akademgorodok, 660036, Russian Federation
Доп.точки доступа:
Zvezdin, A. K.; Krotov, S. S.; Kadomtseva, A. M.; Vorob'ev, G. P.; Popov, Y. F.; Pyatakov, A. P.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Popova, E. A.
}
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13.
Reply to "Comment
on 'Unusual magnetic transitions and nature of magnetic resonance spectra in oxide glasses containing
gadolinium
' " / J. . Kliava [et al.]> // Phys. Rev. B. - 2006. -
Vol. 74
,
Is. 2
. - Ст. 26404,
DOI
10.1103/PhysRevB.74.026404. - Cited References: 8 . - ISSN 1098-0121
РУБ
Physics, Condensed Matter
Рубрики:
WALLED CARBON NANOTUBES
HYDROGEN
Аннотация:
In this Reply we show that, contrary to the suggestion of Dubroca, Hack, and Hummel (DHH), the feature observed at ca. 55 K in the magnetic susceptibility of
gadolinium
-containing oxide glasses [as in our earlier paper, Kliava Phys. Rev. B 71, 104406 (2005)] cannot be due to a magnetic transition in oxygen contaminant. In support of this statement, we supply transformed data at low Gd content as well as magnetization curves for a series of glasses containing dysprosium oxide measured with the same superconducting quantum interference device as in our earlier paper. In all these cases the feature in question is absent. Thus, our previous assignment of the 55 K feature to a paramagnetic-to-ferromagnetic transition in Gd clusters in the glass remains the only one consistent with the experimental results.
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Держатели документа:
Univ Bordeaux 1, CPMOH, UMR 5798, CNRS, F-33405 Talence, France
Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
RAS, SB, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
SI Vavilov State Opt Inst, St Petersburg 199034, Russia
Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
ИФ СО РАН
CPMOH, UMR 5798 CNRS, Universite Bordeaux-I, 33405 Talence Cedex, France
Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
L. V. Kirensky Institute of Physics SB RAS, Krasnoyarsk 660036, Russian Federation
S. V. Vavilov State Optical Institute, St. Petersburg 199034, Russian Federation
Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel
Доп.точки доступа:
Kliava, J.; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Edelman, I. S.; Эдельман, Ирина Самсоновна; Potseluyko, A. M.; Melnikova, S. V.; Мельникова, Светлана Владимировна; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Zarubina, T. V.; Petrovskii, G.; Bruckental, I.; Yeshurun, Y.
}
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14.
Specific heat of
YFe3(BO3)(4), Y0.5Gd0.5Fe3(BO3)(4), and GdFe3(BO3)(4) / A. N. Vasiliev [et al.]> // J. Exp. Theor. Phys. - 2006. -
Vol. 102
,
Is. 2
. - P. 262-265,
DOI
10.1134/S1063776106020075. - Cited References: 10 . - ISSN 1063-7761
РУБ
Physics, Multidisciplinary
Рубрики:
TRIGONAL GDFE3(BO3)(4)
Кл.слова (ненормированные):
Antiferromagnetism
--
Gadolinium
compounds
--
Heat transfer
--
Ions
--
Magnetic fields
--
Single crystals
--
Temperature measurement
--
Yttrium compounds
--
Magnetic entropy
--
Magnetic system
--
Reorientational transitions
--
Scaling procedure
--
Specific heat of solids
Аннотация:
The specific heat was measured in the range 0.4-300 K in YFe3(BO3)(4), Y0.5Gd0.5Fe3(BO3)(4), and GdFe3(BO3)(4) single crystals. Sharp anomalies were found at temperatures of first-order structural, second-order antiferromagnetic, and first-order spin-reorientational transitions. A Neel temperature of about 37 K was found to be virtually independent of presence of rare-earth ions, indicating rather weak coupling of Gd and Fe subsystems. The contribution of the magnetic system to specific heat was separated through the scaling procedure allowing determination of the magnetic entropy of Fe and Gd subsystems. At the lowest temperatures, the specific heat in GdFe3(BO3)(4) exhibits a Schottky-type anomaly, which is due to Gd3+ eightfold degenerate ground-level splitting by the internal magnetic field of the Fe subsystem of about 7 T.
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Держатели документа:
Moscow MV Lomonosov State Univ, Low Temp Phys Dept, Moscow 119992, Russia
Russian Acad Sci, Siberian Div, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
ИФ СО РАН
Low-Temperature Physics Department, Moscow State University, Moscow, 119992, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Institute for Solid-State Physics, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
Доп.точки доступа:
Vasiliev, A. N.; Popova, E. A.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Temerov, V. L.; Темеров, Владислав Леонидович; Hiroi, Z.
}
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15.
Magneto-optical properties of
Dy3+ in oxide glasses: The origin of the magneto-optical activity of f-f transitions and its anomalous temperature dependence / A. V. Malakhovskii [et al.]> // Phys. Solid State. - 2007. -
Vol. 49
,
Is. 4
. - P. 701-707,
DOI
10.1134/S1063783407040178. - Cited References: 28 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
MAGNETIC CIRCULAR-DICHROISM
FLUOROZIRCONATE ZBLAN GLASS
OPTICAL-ABSORPTION SPECTRA
DOPED SODA GLASS
SPECTROSCOPIC PROPERTIES
FLUOROBORATE GLASSES
LITHIUM BORATE
IONS
PR3+
GADOLINIUM
Аннотация:
The temperature dependence of the absorption spectra and magnetic circular dichroism due to f-f transitions from the H-6(15/2) to F-6 (5/2) and (6)(F (7/2) + H (5/2)) states in the Dy3+ ion in (Dy2O3-P2O5-SiO2-GeO2) and (Dy2O3-La2O3-Al2O3-B2O3-SiO2-GeO2) glasses and the temperature dependence of the Faraday effect were studied. The temperature dependence of the Faraday effect caused by f-d transitions was found to differ from that of the magnetic circular dichroism due to f-f transitions. It was shown that f-f transitions occur preferentially in Dy3+ ions associated into clusters. The origin of the paramagnetic magneto-optical activity of f-f transitions was analyzed. It was shown that the contributions to this activity can differ in value and sign and that the ratio between these contributions depends on the transition type. In some cases, this difference results in an anomalous temperature dependence of the magneto-optical activity.
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Публикация на русском языке
Магнитооптические свойства Dy3+ в оксидных стеклах. Природа магнитооптической активности f-f-переходов и ее аномальной температурной зависимости [Текст] / А. В. Малаховский [et al.] // Физика твердого тела. - Санкт-Петербург : Федеральное государственное унитарное предприятие "Академический научно-издательский, производственно-полиграфический и книгораспространительский центр Российской академии наук "Издательство "Наука", 2007. - Т. 49 № 4. - С. 667-673
Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
SI Vavilov State Opt Inst, St Petersburg 192371, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, 660041, Russian Federation
Vavilov State Optical Institute, Birzhevaya liniya 12, St. Petersburg, 192371, Russian Federation
Доп.точки доступа:
Malakhovskii, A. V.; Малаховский, Александр Валентинович; Isachenko, V. A.; Sukhachev, A. L.; Сухачев, Александр Леонидович; Potseluyko, A. M.; Zabluda, V. N.; Заблуда, Владимир Николаевич; Zarubina, T. V.; Edelman, I. S.; Эдельман, Ирина Самсоновна
}
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16.
Unusual magnetic phase
transitions in Gd3+ clusters in multicomponent oxide glasses / J. . Kliava [et al.]> // J. Supercond. Nov. Magn. - 2007. -
Vol. 20
,
Is. 2
. - P. 149-153,
DOI
10.1007/s10948-006-0116-4. - Cited References: 7 . - ISSN 1557-1939
РУБ
Physics, Applied + Physics, Condensed Matter
Рубрики:
GADOLINIUM
RESONANCE
Кл.слова (ненормированные):
oxide glasses
--
gadolinium
--
magnetic clusters
--
superparamagnetism
--
Gadolinium
--
Magnetic clusters
--
Oxide glasses
--
Superparamagnetism
--
Magnetic clusters
--
Magnetic phase transitions
--
Oxide glasses
--
Weiss constant
--
Antiferromagnetic materials
--
Ferromagnetic materials
--
Gadolinium
--
Magnetic anisotropy
--
Magnetic susceptibility
--
Paramagnetic resonance
--
Phase transitions
--
Positive ions
--
Superparamagnetism
--
Glass
Аннотация:
Magnetic susceptibility, EPR and optical properties have been studied in a glass system {20La(2)O(3) - 22Al(2)O(3) - 23B(2)O(3) - 35(SiO2 + GeO2)} with a part of La2O3 substituted by Gd2O3 in different concentrations. Positive Weiss constants have been found in more heavily doped glasses; two magnetic transitions at 55 and 12 K have been detected and ascribed, respectively, to ferromagnetic and antiferromagnetic clusters of Gd3+ ions. The EPR spectra confirm the clustering at higher Gd contents. At low temperatures the cluster-related resonance indicates an onset of magnetic anisotropy. The clustering, depending on the Gd concentration, correlates with a shift to lower energies of the strong optical absorption band edge.
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Держатели документа:
Univ Bordeaux 1, Cours Liberat 351, CP MOH, UMR 5798, F-33405 Talence, France
RAS, SB, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
SV Vavilov State Opt Inst, St Petersburg 199034, Russia
ИФ СО РАН
CPMOH, UMR 5798 CNRS-Universite Bordeaux-I, 33405 Talence Cedex, France
L.V. Kirensky Institute of Physics, SB, RAS, Krasnoyarsk 660036, Russian Federation
Bar-Ilan University, Department of Physics, Ramat-Gan 52900, Israel
S.V. Vavilov State Optical Institute, St.-Petersburg 199034, Russian Federation
CPMOH, Universite Bordeaux-I, 351 Cours de la Liberation, 33405 Talence Cedex, France
Доп.точки доступа:
Kliava, J.; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Edelman, I. S.; Эдельман, Ирина Самсоновна; Potseluyko, A. M.; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Bruckental, I.; Yeshurun, Y.; Zarubina, T.
}
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17.
Magnetoelectric interactions in
rare-earth ferroborates / A. M. Kadomtseva [et al.]> // J. Exp. Theor. Phys. - 2007. -
Vol. 105
,
Is. 1
. - P. 116-119,
DOI
10.1134/S1063776107070254. - Cited References: 14 . - ISSN 1063-7761
РУБ
Physics, Multidisciplinary
Рубрики:
GDFE3(BO3)(4)
Кл.слова (ненормированные):
Gadolinium
compounds
--
Magnetoelectric effects
--
Phase transitions
--
Polarization
--
Single crystals
--
Magnetic control
--
Magnetoelectric interactions
--
Rare earth ferroborates
--
Torque curves
--
Rare earths
Аннотация:
Magnetic-field-induced phase transitions in single crystals of the rare-earth ferroborates GdFe3(BO3)(4) and NdFe3(BO3)(4) have been studied by measuring magnetoelectric dependences and torque curves. These phase transitions can serve as one of the possible mechanisms for magnetic control of electric polarization. Magnetic phase transitions in GdFe3(BO3)(4) are analyzed theoretically.
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Держатели документа:
Moscow MV Lomonosov State Univ, Moscow 119992, Russia
Russian Acad Sci, Inst Gen Phys, Moscow 119991, Russia
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Moscow State University, Moscow 119992, Russian Federation
Institute of General Physics, Russian Academy of Sciences, ul. Vavilova 38, Moscow 119991, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Kadomtseva, A. M.; Zvezdin, A. K.; Pyatakov, A. P.; Kuvardin, A. V.; Vorob'ev, G. P.; Popov, Y. F.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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18.
Unusual Valence States
of Manganese Ions in
Gadolinium
Gallium Aluminum Borate Single Crystals [Text] / A. S. Aleksandrovsky, L. N. Bezmaternykh [et al.]> // Известия высших учебных заведений. Физика. - 2008. -
Т. 51
,
№ 10/2
. - P115-119
Доп.точки доступа:
Aleksandrovsky, A.S.; Bezmaternykh, L.N.; Bovina, A.F.; Gudim, I.A.; Kharlamova, S.A.; Krylov, A.S.; Melnikova, S.V.; Temerov, V.Ye.
}
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19.
Magnetic structure of
the field-induced multiferroic GdFe3(BO3)(4) / H. D. Mo [et al.]> // Phys. Rev. B. - 2008. -
Vol. 78
,
Is. 21
. - Ст. 214407,
DOI
10.1103/PhysRevB.78.214407. - Cited References: 35. - We thank W. Schoenig, D. Coburn, S. Wilkins, and J. Hill for their support at X22C, S. LaMarra for his support at X21, and D. Connor for a critical reading of the manuscript. Use of the National Synchrotron Light Source, Brookhaven National Laboratory was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. . - ISSN 1098-0121
РУБ
Physics, Condensed Matter
Рубрики:
IRON BORATE GDFE3(BO3)(4)
X-RAY-SCATTERING
POLARIZATION DEPENDENCE
EXCHANGE SCATTERING
RESONANCE
FERROELECTRICITY
Кл.слова (ненормированные):
ferromagnetic materials
--
gadolinium
compounds
--
iron compounds
--
magnetic structure
--
multiferroics
--
Neel temperature
--
spin dynamics
--
X-ray scattering
Аннотация:
We report a magnetic x-ray scattering study of the field-induced multiferroic GdFe3(BO3)(4). Resonant x-ray magnetic scattering at the Gd L-II,L-III edges indicates that the Gd moments order at T-N approximate to 37 K. The magnetic structure is incommensurate below T-N, with the incommensurability decreasing monotonically with decreasing temperature until a transition to a commensurate magnetic phase is observed at T approximate to 10 K. Both the Gd and Fe moments undergo a spin reorientation transition at T-SR approximate to 9 K such that the moments are oriented along the crystallographic c axis at low temperatures. With magnetic field applied along the a axis, our measurements suggest that the field-induced polarization phase has a commensurate magnetic structure with Gd moments rotated similar to 45 degrees toward the basal plane, which is similar to the magnetic structure of the Gd subsystem observed in zero field between 9 and 10 K, and the Fe subsystem has a ferromagnetic component in the basal plane.
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Держатели документа:
[Mo, Haiding
Nelson, Christie S.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA
[Bezmaternykh, Leonard N.
Temerov, V. T.] RAS, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY 11973, United States
L. V. Kirensky Institution of Physics, Siberian Branch of RAS, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Mo, H. D.; Nelson, C. S.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Temerov, V. T.
}
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20.
Magnetic and transport
properties of Gd(0.9)A(0.1)CoO(3-delta) (A = Ba, Sr) / N. V. Kazak [et al.]> // J. Magn. Magn. Mater. - 2009. -
Vol. 321
,
Is. 9
. - P. 1266-1271,
DOI
10.1016/j.jmmm.2008.11.087. - Cited Reference Count: 31. - Гранты: This study was supported by the Rosnauka (Project no. MK-4278.2008.2), Russian Foundation for Basic Research (Project no. 08-02-90708 mob_st) and "Strongly correlated electrons'' program of the Department of Physical Sciences of RAS. - Финансирующая организация: Rosnauka [MK-4278.2008.2]; Russian Foundation for Basic Research [08-02-90708 mob_st]; "Strongly correlated electrons'' program of the Department of Physical Sciences of RAS . - ISSN 0304-8853
Рубрики:
PEROVSKITE
PR
LA
EU
ND
LN
TRANSITION
SPIN
GD
SM
Кл.слова (ненормированные):
Perovskite structure
--
Doped cobaltite
--
Magnetic susceptibility
--
Metal-insulator transition
--
Doped cobaltite
--
Magnetic susceptibility
--
Metal-insulator transition
--
Perovskite structure
--
Antiferromagnetism
--
Barium
--
Cobalt compounds
--
Electric conductivity
--
Ferromagnetic materials
--
Ferromagnetism
--
Gadolinium
--
Magnetic susceptibility
--
Metal insulator boundaries
--
Oxide minerals
--
Paramagnetic materials
--
Perovskite
--
Phase separation
--
Semiconductor insulator boundaries
--
Transport properties
--
Antiferromagnetic
--
Doped cobaltite
--
Doped samples
--
Electrical conductivity measurements
--
Ferromagnetic transitions
--
Insulator-metal transitions
--
Magnetic and transport properties
--
Magnetic behaviors
--
Perovskite structure
--
Temperature ranges
--
Transport datum
--
X- ray diffractions
--
Metal insulator transition
Аннотация:
The X-ray diffraction, magnetization and electrical conductivity measurements for Gd(0.9)A(0.1)CoO(3-delta) (A = Ba, Sr) have been made. The complicated magnetic behavior, including the paramagnetic-ferromagnetic-antiferromagnetic and paramagnetic-ferromagnetic transitions, was found for Ba- and Sr-doped samples. The gradual insulator-metal transitions were observed in a wide temperature range T = 600-800 K. The complex magnetic and transport data could be explained on the basis of the structural phase separation. (C) 2009 Elsevier B.V. All rights reserved.
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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Polytech Inst, Krasnoyarsk 660074, Russia
Univ Guadalajara, CUCEI, Dept Fis, Guadalajara 44430, Jalisco, Mexico
Siberian Fed Univ, Inst Nat & Humanitary Res, Krasnoyarsk 660041, Russia
AA Galkin Donetsk Phystech Natl Acad Sci Ukraine, UA-83114 Donetsk, Ukraine
Доп.точки доступа:
Kazak, N. V.; Казак, Наталья Валерьевна; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Balaev, A. D.; Балаев, Александр Дмитриевич; Ivanova, N.B.; Pashkevich, Yu. G.; Michel, C.R.; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич
}
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© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)