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1.
High-temperature magnetoelectricity of
terbium
aluminum borate: The role of excited states of the rare-earth ion / A. M. Kadomtseva [et al.]> // Phys. Rev. B. - 2014. -
Vol. 89
,
Is. 1
. - Ст. 014418,
DOI
10.1103/PhysRevB.89.014418. - Cited References: 25. - We thank Dr. Daniel Sando for useful comments and remarks. This work is supported by the Russian Foundation for Basic Research (Projects No. 13-02-01093, No. 13-02-12443, No. 13-02-01093, No. 12-02-01261, and No. 13-02-12442) and a grant from the Russian Federation President on support of sciences schools no. 4828.2012.2, The Ministry of Education and Science of Russian Federation, Project No. 8365. . - ISSN 1098-0121. - ISSN 1550-235X
РУБ
Physics, Condensed Matter
Рубрики:
GROUND-STATE
PRFE3(BO3)4
MULTIFERROICS
Аннотация:
Recently discovered magnetoelectricity in the rare-earth aluminum borates RAl3(BO3)4 has attracted attention due to the large values of magnetoinduced electric polarization. We have observed for the first time the magnetoelectric polarization in TbAl3(BO3)4 exhibiting anomalous temperature dependence: an electric polarization induced by in-plane magnetic field (P||a,H⊥c axis) which is small at low temperatures (4K), remarkably increases by almost an order of magnitude at high temperatures (150–300K). The observed nonmonotonic temperature behavior of the field-induced polarization, including a change of sign at ∼65–70K, is attributed to the competition of the ground and excited crystal-field states of Tb3+ ions. Quantum theory analysis, involving the combination of analytical and numerical methods, has enabled us to quantitatively describe the observed magnetic and magnetoelectric properties of TbAl3(BO3)4.
Недавно обнаруженное магнетоэлектричество в редкоземельных алюмоборатах RAl3 (BO3) 4 привлекло к себе внимание из-за больших значений магнитоиндуцированной электрической поляризации. Мы наблюдали в первый раз магнитоэлектрическую поляризацию в TbAl3 (BO3) 4, показывающую аномальную температурную зависимость: электрическая поляризация индуцируется в плоскости магнитного поля (Р | |, Н ⊥ оси с), и является небольшой при низких температурах (4K), Значительно увеличивается, почти на порядок величины, при высоких температурах (150-300 К). Наблюдаемая с изменением температуры немонотонность поляризации от поля, в том числе изменению знака на ~ 65-70 К, может быть отнесена к конкуренции между основном и возбужденном кристаллическим полем состояниями ионов ТЬ3 +. Теория квантового анализа, предполагающей сочетание аналитических и численных методов, позволила нам количественно описать наблюдаемые магнитные и магнитоэлектрические свойства TbAl3 (BO3) 4.
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Держатели документа:
Moscow MV Lomonosov State Univ, MSU, Dept Phys, Moscow 119992, Russia
Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow, Russia
State Univ, Moscow Inst Phys & Technol, Moscow, Russia
Natl Res Univ Elect Technol MIET, Zelenograd, Russia
RAS, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Kadomtseva, A. M.; Popov, Y. F.; Vorob'ev, G. P.; Kostyuchenko, N. V.; Popov, A. I.; Mukhin, A. A.; Ivanov, V. Y.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Pyatakov, A. P.; Zvezdin, A. K.; Russian Foundation for Basic Research [13-02-12443, 13-02-01093, 12-02-01261, 13-02-12442]; Russian Federation President on support of sciences schools [4828.2012.2]; Ministry of Education and Science of Russian Federation [8365]
}
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2.
Raman scattering under
structural and magnetic phase transitions in
terbium
ferroborate / A. V. Peschanskii [et al.]> // Low Temp. Phys. - 2014. -
Vol. 40
,
Is. 2
. - P. 171-178,
DOI
10.1063/1.4865566. - Cited References: 24 . - ISSN 1063-777X. - ISSN 1090-6517
РУБ
Physics, Applied
Рубрики:
SPIN-PHONON INTERACTION
GDFE3(BO3)4
Аннотация:
The Raman scattering spectrum of single crystal TbFe3(BO3)4 was studied in the frequency range 3–500 cm−1 at temperatures from 2 to 300 K. It was found that in high- and low-temperature phases there exist additional phonon lines which were not known before. In the high-temperature phase, these lines originate from LO–TO splitting of polar phonons. Appearance of the additional lines in the low temperature phase is due to both a reduction of the crystal symmetry under the phase transition and an increase of the primitive cell volume. It was established that the frequencies of some phonon lines in the magneto-ordered phase are shifted towards the high-energy region upon applying an external magnetic field along the third-order axis. The spectrum of two-magnon Raman scattering was investigated. It was shown that at low temperatures the two-magnon band has a complex shape that reflects specific features in the density of state of the magnon branches. The magnon energy at the Brillouin zone boundary was determined.
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Публикация на русском языке
Рамановское рассеяние света при структурном и магнитном фазовых переходах в ферроборате тербия [Текст] / А. В. Песчанский [и др.] // Физ. низких температур : Физико-технический институт низких температур им. Б.И. Веркина НАН Украины, 2014. - Т. 40 Вып. 2. - С. 219-229
Держатели документа:
Natl Acad Sci Ukraine, BI Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
Russian Acad Sci, LV Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Peschanskii, A. V.; Yeremenko, A. V.; Fomin, V. I.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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3.
Magneto-optical properties of
terbium
iron borate [] / M. I. Pashchenko [et al.]> // Appl. Optics. - 2014. -
Vol. 53
,
Is. 10
. - P. B116-B120,
DOI
10.1364/AO.53.00B116. - Cited References: 19 . - ISSN 1559-128X. - ISSN 2155-3165
РУБ
Optics
Рубрики:
GENERATION
CRYSTALS
LASER
Аннотация:
The Faraday effect induced by an external magnetic field in TbFe3(BO3)4 and TbAl3(BO3)4 borates at a wavelength 633 nm has been investigated. It was found that the
terbium
subsystem brings the dominant magnetic contribution to the Faraday rotation at low temperatures in borate TbFe3(BO3)4. For both TbFe3(BO3)4 and TbAl3(BO3)4 the magneto-optical coefficients of the
terbium
subsystem were determined.
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Держатели документа:
Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
Russian Acad Sci, LV Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Pashchenko, M. I.; Bedarev, V. A.; Merenkov, D. N.; Savina, Yu. O.; Pashchenko, V. O.; Gnatchenko, S. L.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Temerov, V. L.; Темеров, Владислав Леонидович
}
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4.
Synthesis and spectroscopic
properties of multiferroic β΄-Tb2(MoO4)3 / V. V. Atuchin [et al.]> // Opt. Mater. - 2014. -
Vol. 36
,
Is. 10
. - P. 1631–1635,
DOI
10.1016/j.optmat.2013.12.008. - Cited References: 43. - This study was partly supported by SB RAS under Projects 28.13 and 24.31, and by the PSB RAS Project No. 3.9.5b, and RFBR Projects . - ISSN 0925-3467. - ISSN 1873-1252
Перевод заглавия:
Синтез и спектроскопические свойства мультиферроика β'-Tb2(MoO4)3
Рубрики:
FERROELECTRIC-FERROELASTIC Tb2(MoO4)3
STIMULATED RAMAN-SCATTERING
TRANSITION-METAL MOLYBDATES
RARE-EARTH MOLYBDATES
CRYSTAL-STRUCTURE
VIBRATIONAL PROPERTIES
LUMINESCENCE PROPERTIES
Tb-2(MoO4)3 CRYSTALS
TERBIUM
MOLYBDATE
PHASE-TRANSITIONS
Кл.слова (ненормированные):
Terbium
molybdate
--
Raman spectrum
--
Optical properties
Аннотация:
Orthorhombic
terbium
molybdate, β΄-Tb2(MoO4)3, microcrystals have been fabricated by solid state synthesis at T = 750-1270 K for t = 290 h. The crystal structure β΄-Tb2(MoO4)3 has been refined by Rietveld method in space group Pba2 with cell parameters of a = 10.35387(6), b = 10.38413(6) and c = 10.65695(7) A (RB = 1.83%). About 40 narrow Raman lines have been observed in the Raman spectrum recorded for the β΄-Tb2(MoO4)3 powder sample. The luminescence spectrum of β΄-Tb2(MoO4)3 has been measured under the excitation at 355 nm, and the intensive photoluminescence band at 540-550 nm has been found. В© 2013 Elsevier Ltd. All rights reserved.
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Доп.точки доступа:
Grinberg, M. \ed.\; Bojarski, P. \ed.\; Suchocki, A. \ed.\; Atuchin, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Chimitova, O. D.; Krylov, A. S.; Крылов, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Bazarov, B. G.; Bazarova, J. G.; Xia, Zhiguo; International Workshop on Advanced Spectroscopy and Optical Materials (4th ; 14–19 July 2013 ; Gdańsk, Poland)
}
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5.
Magnetic and magnetoelectric
properties of
terbium
aluminum borate / A. M. Kadomtseva [et al.]> // Bull. Russ. Acad. Sci. Phys. - 2014. -
Vol. 78
,
Is. 2
. - P. 97-99,
DOI
10.3103/S1062873814020142. - Cited References: 9. - This work was supported by the Russian Foundation for Basic Research, projects nos. 13-02-01093 and 12-02-01261. . - ISSN 1062-8738. - ISSN 1934-9432
Кл.слова (ненормированные):
Aluminum
--
Terbium
--
Aluminum borate
--
Magnetoelectric properties
--
Rare earth ions
--
Temperature dependence
--
Terbium
compounds
Аннотация:
The magnetic and magnetoelectric properties of
terbium
aluminum borate are studied. It is established that temperature dependences of the magnetoelectric effects of
terbium
aluminum borate are analogous to those of
terbium
ferroborate, despite the difference in effective magnetic fields acting on rare-earth ions in these compounds. This confirms the general assumption on the decisive role of the rare-earth element in the magnetoelectric properties of borates. © 2014 Allerton Press, Inc.
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Публикация на русском языке
Магнитные и магнитоэлектрические свойства алюмобората тербия [Текст] / А. М. Кадомцева [и др.] // Изв. РАН. Сер. физич. - 2014. - Т. 78 № 2. - С. 165-167
Держатели документа:
Faculty of Physics, Moscow State University, Moscow 119992, Russian Federation
Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow 119991, Russian Federation
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, 660036, Russian Federation
Доп.точки доступа:
Kadomtseva, A. M.; Кадомцева А.М.; Popov, Yu. F.; Попов Ю. Ф.; Vorob'ev, G. P.; Воробьев Г. П.; Pyatakov, A. P.; Пятаков А.П.; Zvezdin, A. K.; Звездин А. К.; Mukhin, A. A.; Мухин А. А.; Ivanov, V. Yu.; Иванов В. Ю.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович
}
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6.
IR spectroscopy of
the low-frequency phonon spectrum of the TbFe3(BO3)(4) single-crystal / V. S. Kurnosov [et al.]> // Low Temp. Phys. - 2014. -
Vol. 40
,
Is. 12
. - P. 1087-1096,
DOI
10.1063/1.4904002. - Cited References:27 . - ISSN 1063. - ISSN 1090-6517. -
РУБ
Physics, Applied
Рубрики:
EARTH FERROBORATES RFe3(BO3)4
RAMAN-SCATTERING
TERBIUM
FERROBORATE
Аннотация:
A study of the IR reflectance spectra of the TbFe3(BO3)4 crystal. We determined the frequencies of the polar lattice phonons in the high-temperature R32, and low- temperature P3121, phases. All 8A 2 ⊕ 11E-modes were found in the high-temperature phase, with nine of them corresponding to lines of the absorption spectrum. In the low-temperature phase, of the 20A 2 ⊕ 35E-modes allowed by the symmetry of the crystal lattice, 20A 2 ⊕ 25E-modes were found.
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Публикация на русском языке
ИК спектроскопия низкочастотного фононного спектра монокристалла TbFe3(BO3)4 [Текст] / В. С. Курносов [и др.] // Физ. низких температур : Физико-технический институт низких температур им. Б.И. Веркина НАН Украины, 2014. - Т. 40 Вып. 12. - С. 1397-1408
Держатели документа:
Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine.
Russian Acad Sci, Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Kurnosov, V. S.; Tsapenko, V. V.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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7.
Magnetoelastic effects in
terbium
ferroborate / G. A. Zvyagina [et al.]> // Low Temp. Phys. - 2008. -
Vol. 34
,
Is. 11
. - P. 901-908 ; Физика низких температур,
DOI
10.1063/1.3009584. - Cited References: 17 . - ISSN 1063-777X
РУБ
Physics, Applied
Рубрики:
CRYSTAL-STRUCTURE
ND
Кл.слова (ненормированные):
acoustic wave velocity
--
antiferromagnetic materials
--
elastic moduli
--
exchange interactions (electron)
--
iron compounds
--
magnetoelastic effects
--
solid-state phase transformations
--
terbium
compounds
Аннотация:
The behavior of the elastic moduli and sound absorption in a
terbium
orthoborate single crystal at low temperatures is studied. The components of the tensor of the elastic moduli of this system are determined. A structural phase transition and a transition of the magnetic subsystem into an antiferromagnetically ordered state appear in the temperature dependences of the sound velocities and absorption. The magnetic field dependences of the velocities of transverse sound exhibit singularities in the form of jumps at a magnetic field equal to the field of the spin-flop transition of the antiferromagnetic subsystem. Theoretical analysis shows that the observed behavior of the acoustic characteristics are associated not with the rare-earth subsystem of ferroborate but rather with the renormalization of the exchange interaction between iron ions as a result of the magnetoelastic coupling.
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Держатели документа:
[Zvyagina, G. A.
Zhekov, K. R.
Bilych, I. V.
Zvyagin, A. A.] Natl Acad Sci Ukraine, BI Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
[Bezmaternykh, L. N.
Gudim, I. A.] Russian Acad Sci, LV Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
B. I. Verkin Institute for Low-Temperature Physics and Engineering, National Academy of Sciences of Ukraine, pr. Lenina 47, Kharkov 61103, Ukraine
L. V. Kirenskii Institute of Physics, Siberian Branch, Russian Adcademy of Sciences, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Zvyagina, G. A.; Zhekov, K. R.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Bilych, I. V.; Zvyagin, A. A.
}
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8.
Magnetic structure, magnetic
interactions and metamagnetism in
terbium
iron borate TbFe3(BO3)(4): a neutron diffraction and magnetization study / C. . Ritter [et al.]> // J. Phys.: Condens. Matter. - 2007. -
Vol. 19
,
Is. 19
. - Ст. 196227,
DOI
10.1088/0953-8984/19/19/196227. - Cited References: 15 . - ISSN 0953-8984
РУБ
Physics, Condensed Matter
Рубрики:
GDFE3(BO3)(4)
Кл.слова (ненормированные):
Magnetic structure
--
Magnetic susceptibility
--
Metamagnetism
--
Neutron diffraction
--
Neutron scattering
--
Phase transitions
--
Aneutron diffraction
--
Magnetic interactions
--
Neutron scattering measurements
--
Terbium
iron borate
--
Terbium
compounds
Аннотация:
Magnetization, susceptibility and neutron scattering measurements were performed on the
terbium
iron borate TbFe3(BO3)(4). Structural and magnetic phase transitions were obtained as a function of external magnetic field and temperature. A metamagnetic transition of the
terbium
spins and a spin-flop transition of the iron sublattice are obtained at an external magnetic field 35 kOe < Ht < 60 kOe. The values of the effective exchange HE and the anisotropy HA fields are evaluated. Temperature dependent neutron diffraction studies reveal the magnetic structure of TbFe3(BO3)(4) and the thermal evolution of the two magnetic sublattices. An antiferromagnetic coupling along the helicoidal chains of Fe atoms sets in at 40 K with a propagation vector k = [ 0 0 1/2]. The magnetic ordering of the Tb sublattice sets in at the same temperature and leads to an anti-parallel alignment of the Fe and Tb moments within the a-b-planes with mu(Fe) = 4.4 mu(B) and mu(Tb) = 8.6 mu(B) at 2 K.
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Держатели документа:
Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France
RAS, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Institute Laue-Langevin, Boite Postale 156, F-38042 Grenoble, France
L v Kirenskii Institute of Physics, Siberian Branch, RAS, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Ritter, C.; Balaev, A. D.; Балаев, Александр Дмитриевич; Vorotynov, A. M.; Воротынов, Александр Михайлович; Petrakovskii, G. A.; Петраковский, Герман Антонович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Temerov, V. L.; Темеров, Владислав Леонидович; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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9.
Zeeman effect and
stark splitting of the electronic states of the rare-earth ion in the paramagnetic
terbium
garnets Tb3Ga5O12 and Tb3Al5O12 / U. V. Valiev [et al.]> // Phys. Solid State. - 2007. -
Vol. 49
,
Is. 1
. - P. 91-98,
DOI
10.1134/S1063783407010167. - Cited References: 14 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
YTTRIUM-ALUMINUM-GARNET
SELECTIVE POLARIZED SPECTROSCOPY
CRYSTAL-FIELD ANALYSIS
GALLIUM GARNET
Аннотация:
The Zeeman effect in the F-7(6) - D-5(4) absorption band of the Tb3+ ion in the paramagnetic garnets Tb3Ga5O12 and Tb3Al5O12 was Studied. The field dependences of the Zeeman splitting of some absorption lines arc found to exhibit unusual behavior: as the magnetic field increases, the hand splitting decreases rather than increases. Symmetry analysis relates these lines to 4f - 4f electron transitions of the doublet-quasi-doublet or quasi-doublet-doublet type, for which the field dependences of the splitting differ radically from the well-known field dependences of the Zeeman splitting for quasi-doublet-quasi-doublet or quasi-doublet-singlet transitions in a longitudinal magnetic field.
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Публикация на русском языке
Эффект Зеемана и особенности штарковского расщепления электронных состояний редкоземельного иона в тербиевых парамагнитных гранатах Tb3Ga5O12 и Tb3Al5O12 [Текст] / У. В. Валиев, J. B. Gruber, D. Sardar [et al.] // Физ. тверд. тела. - Санкт-Петербург : Наука, 2007. - Т. 49 Вып. 1. - С. 87-94
Держатели документа:
Natl Univ Uzbekistan, Tashkent 700174, Uzbekistan
Univ Texas, San Antonio, TX 78249 USA
ARL, Adelphi Lab Ctr, Adelphi, MD 20783 USA
Natl Acad Sci Ukraine, Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
National University of Uzbekistan, Tashkent 700174, Uzbekistan
University of Texas at San Antonio, San Antonio, TX 78249-0697, United States
ARL, Adelphi Laboratory Center, Adelphi, MD 20783-1197, United States
Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, pr. Lenina 47, Kharkov, 61103, Ukraine
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Valiev, U. V.; Gruber, J. B.; Sardar, D. K.; Zandi, B.; Kachur, I. S.; Mukhammadiev, A. K.; Piryatinskaya, V. G.; Sokolov, V. Y.; Edelman, I. S.; Эдельман, Ирина Самсоновна
}
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10.
Patrin, G. S.
The ''easy plane easy axis'' transition in alpha-Fe2O3:Ga crystals induced by doping with
terbium
ions / G. S. Patrin, N. V. Volkov, V. N. Vasiliev> // Phys. Lett. A. - 1997. -
Vol. 230
,
Is. 1-2
. - P. 96-98,
DOI
10.1016/S0375-9601(97)00219-3. - Cited References: 10 . - ISSN 0375-9601
РУБ
Physics, Multidisciplinary
Аннотация:
In easy plane weak ferromagnetic alpha-Fe2O3:Ga crystals it was found that doping with a hundredth part of To ions leads to the restoration of the transition into the ''easy axis'' magnetic state. It was established that in the alpha-Fe2O3:Ga, Tb crystal the angular magnetic phase is realized. (C) 1997 Published by Elsevier Science B.V.
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Доп.точки доступа:
Volkov, N. V.; Волков, Никита Валентинович; Vasiliev, V. N.; Патрин, Геннадий Семёнович
}
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11.
Magnetic anisotropy and
magnetoelectric properties of Tb1-x Er (x) Fe-3(BO3)(4) ferroborates / A. K. Zvezdin [et al.]> // J. Exp. Theor. Phys. - 2009. -
Vol. 109
,
Is. 1
. - P. 68-73,
DOI
10.1134/S1063776109070097. - Cited References: 18. - This study was supported by the Russian Foundation for Basic Research (project no. 07-02-00580). . - ISSN 1063-7761
РУБ
Physics, Multidisciplinary
Рубрики:
GDFE3(BO3)(4)
Кл.слова (ненормированные):
Competing exchange
--
Complex compositions
--
Critical fields
--
Electric polarization
--
Er concentrations
--
Exchange splitting
--
Ferroborates
--
G factors
--
Magnetoelectric properties
--
Nonmonotonic
--
Simple model
--
Spin-flop transitions
--
Composite micromechanics
--
Erbium
--
Ions
--
Magnetic anisotropy
--
Magnetostriction
--
Magnetostrictive devices
--
Phase transitions
--
Polarization
--
Spin dynamics
--
Terbium
alloys
--
Single crystals
Аннотация:
Magnetic and magnetoelectric properties of ferroborate single crystals with complex composition (Tb1 - x Er (x) Fe-3(BO3)(4), x = 0, 0.75) and with competing exchange Tb-Fe and Er-Fe interactions are investigated. Jumps in electric polarization, magnetostriction, and magnetization are observed as a result of spin-flop transitions, as well as a considerable decrease in the critical field upon an increase in the Er concentration, in a field H (c) parallel to the c axis. The observed behavior of phase-transition fields is analyzed and explained using a simple model taking into account anisotropy in g factors and exchange splitting of funda-mental doublets of the easy-axis Tb3+ ion and easy-plane Er3+ ion. It is established that magnetoelectric and magnetostriction anomalies under spin-flop transitions are mainly controlled by the Tb subsystem. The Tb subsystem makes a nonmonotonic contribution Delta P (a) (H (a) , T) to polarization along the a axis: the value of Delta P (a) reverses its sign and increases with temperature due to the contribution from the excited states of the Tb3+ ion.
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Держатели документа:
[Zvezdin, A. K.
Pyatakov, A. P.
Ivanov, V. Yu.
Kuz'menko, A. M.
Mukhin, A. A.] Russian Acad Sci, Prokhorov Inst Gen Phys, Moscow 119991, Russia
[Kadomtseva, A. M.
Popov, Yu. F.
Vorob'ev, G. P.
Pyatakov, A. P.] Moscow MV Lomonosov State Univ, Moscow 119992, Russia
[Bezmaternykh, L. N.
Gudim, I. A.] Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660038, Russia
ИФ СО РАН
Moscow State University, Moscow 119992, Russian Federation
Prokhorov Institute of General Physics, Russian Academy of Sciences, Moscow 119991, Russian Federation
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660038, Russian Federation
Доп.точки доступа:
Zvezdin, A. K.; Kadomtseva, A. M.; Popov, Y. F.; Vorob'ev, G. P.; Pyatakov, A. P.; Ivanov, V. Y.; Kuz'menko, A. M.; Mukhin, A. A.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Russian Foundation for Basic Research [07-02-00580]
}
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12.
ACOUSTIC PROPERTIES OF
TERBIUM
FERRITE-GARNET AT LOW-TEMPERATURES / O. P. KVASHNINA [и др.]> // Fiz. Tverd. Tela. - 1984. -
Vol. 26
,
Is. 8
. - P. 2408-2410. - Cited References: 5 . - ISSN 0367-3294
РУБ
Physics, Condensed Matter
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Доп.точки доступа:
KVASHNINA, O. P.; KAPITONOV, A. M.; SMOKOTIN, E. M.; TITOVA, A. G.
}
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13.
Magnetic structure and
magnetic interactions in
terbium
iron borate TbFe3(BO3)4 / A. M. Vorotynov [et al.]> //
Workshop INTAS - Sib. Branch of the RAS Sci. Cooperation on the Res. Project “New Layered 3d-Materials for Spintronics” / chairman G. A. Petrakovskii. - 2007. - P. 13
Аннотация:
INTAS (The International Association for the Promotion of Cooperation with Scientists from the New Independent States of the Former Soviet Union) — международная ассоциация по содействию сотрудничеству с учёными новых независимых государств бывшего Советского Союза. Некоммерческая организация, финансировалась главным образом из бюджета Европейского Союза. Являлась крупнейшим фондом, поддерживающим научное сотрудничество между учёными стран бывшего СССР и Европейского Союза с 1993 г. Программы INTAS охватывали широкий круг научно-исследовательских проблем. 22 сентября 2006 года было принято решение о прекращении осуществления программы на основании рекомендации Европейской Комиссии. С 1 апреля 2007 года прекратилось распределение новых грантов.
Материалы семинара
,
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Доп.точки доступа:
Petrakovskii, G. A. \chairman\; Петраковский, Герман Антонович; Vorotynov, A. M.; Воротынов, Александр Михайлович; Ritter, C.; Petrakovskii, G. A.; Balaev, A. D.; Балаев, Александр Дмитриевич; Temerov, V. L.; Темеров, Владислав Леонидович; Gudim, I. A.; Гудим, Ирина Анатольевна; "New Layered 3d-Materials for Spintronics", Workshop INTAS - Siberian Branch of the Russian Academy of Sciences Scientific Cooperation on the Research Project(2007 ; March 20-23 ; Krasnoyarsk)
}
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14.
Complex magnetic order
in the Nd(Tb)Fe3(BO3)4 multiferroic revealed by single-crystal neutron diffraction / I. V. Golosovsky [et al.]> // Phys. Rev. B. - 2019. -
Vol. 99
,
Is. 13
. - Ст. 134439,
DOI
10.1103/PhysRevB.99.134439. - Cited References: 33. - This work was supported by the Russian Grant No. RFBR 16-02-00058. A.A.M. acknowledges the financial support from the Russian Science Foundation (16-12-10531). . - ISSN 2469-9950
Кл.слова (ненормированные):
Antiferromagnetism
--
Binary alloys
--
Crystal structure
--
Crystallography
--
Magnetic structure
--
Neodymium compounds
--
Neutron diffraction
--
Single crystals
--
Terbium
compounds
Аннотация:
Magnetic structure of the substituted multiferroics-ferroborates Nd0.9Tb0.1Fe3(BO3)4 and Nd0.8Tb0.2Fe3(BO3)4 were determined in the framework of a self-consistent refinement of the single crystal neutron diffraction data. The small substitution of Nd for Tb leads to the reorientation of the main antiferromagnetic vector L from the basal plane towards the hexagonal axis. The reorientation takes place via an angular structure for which L does not coincide with the principal crystallographic directions and evolves with temperature due to competing magnetic anisotropies of Fe, Nd, and Tb subsystems. Our refinement at 2 K reveals the existence of distortions in the collinear antiferromagnetic Fe spin arrangement suggested before in other ferroborates. Therefore, besides the main antiferromagnetic vector L, the magnetic structure involves additional fine symmetrized combinations of spin components allowed by symmetry. They coexist with certain L components and could originate from the antisymmetric Dzyaloshinsky-Moriya Fe-Fe exchange interactions. At higher temperatures, the magnetic structure is described by the simple collinear model, where the L vector is deviated from the hexagonal plane. © 2019 American Physical Society.
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Держатели документа:
National Research Center, Kurchatov Institute, B.P. Konstantinov Petersburg Nuclear Physics Institute, Gatchina, 188300, Russian Federation
Prokhorov General Physics Institute, RAS, Moscow, 119991, Russian Federation
Universite Grenoble Alpes, CEA, INAC-MEM, Grenoble, 38000, France
Institucio Catalana de Recerca i Estudis Avancats, Barcelona, E-08010, Spain
Fisika Aplikatua II, Zientzia Eta Teknologia Fakultatea, Universidad Del Pais Vasco, UPV/EHU, Bilbao, 48940, Spain
Kirenskii Institute of Physics, Siberian Division of RAS, Krasnoyarsk, 660038, Russian Federation
Доп.точки доступа:
Golosovsky, I. V.; Vasilev, A. I.; Mukhin, A. A.; Ressouche, E.; Skumryev, V.; Urcelay-Olabarria, I.; Gudim, I. A.; Гудим, Ирина Анатольевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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15.
Incorporating rare-earth
terbium
(III)
Ions into Cs2AgInCl6:Bi nanocrystals toward tunable photoluminescence / Y. Liu, X. M. Rong, M. Z. Li [et al.]> // Angew. Chem. - Int. Edit. - 2020. -
Vol. 59
,
Is. 28
. - P. 11634-11640,
DOI
10.1002/anie.202004562. - Cited References: 43. - This work is supported by the National Natural Science Foundation of China (51961145101, 51972118 and 51722202), Fundamental Research Funds for the Central Universities (FRFTP-18-002C1), Guangdong Provincial Science & Technology Project (2018A050506004) and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01X137). This work is also funded by RFBR according to the research project No. 19-52-80003. . - ISSN 1433-7851. - ISSN 1521-3773
Перевод заглавия:
Включение редкоземельного тербия (III) в нанокристаллы Cs2AgInCl6: Bi для перестраиваемой фотолюминесценции
РУБ
Chemistry, Multidisciplinary
Рубрики:
HALIDE DOUBLE PEROVSKITE
LEAD-FREE
LANTHANIDE
STABILITY
EMISSION
Кл.слова (ненормированные):
doping
--
energy transfer
--
perovskite nanocrystals
--
photoluminescence
--
terbium
Аннотация:
The incorporation of impurity ions or doping is a promising method for controlling the electronic and optical properties and the structural stability of halide perovskite nanocrystals (NCs). Herein, we establish relationships between rare‐earth ions doping and intrinsic emission of lead‐free double perovskite Cs2AgInCl6 NCs to impart and tune the optical performances in the visible light region. Tb3+ ions were incorporated into Cs2AgInCl6 NCs and occupied In3+ sites as verified by both crystallographic analyses and first‐principles calculations. Trace amounts of Bi doping endowed the characteristic emission (5D4→7F6‐3) of Tb3+ ions with a new excitation peak at 368 nm rather than the single characteristic excitation at 290 nm of Tb3+. By controlling Tb3+ ions concentration, the emission colors of Bi‐doped Cs2Ag(In1−x Tbx )Cl6 NCs could be continuously tuned from green to orange, through the efficient energy‐transfer channel from self‐trapped excitons to Tb3+ ions. Our study provides the salient features of the material design of lead‐free perovskite NCs and to expand their luminescence applications.
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Держатели документа:
Univ Sci & Technol Beijing, Beijing Municipal Key Lab New Energy Mat & Techno, Sch Mat Sci & Engn, Beijing 100083, Peoples R China.
Shenzhen Univ, Shenzhen Key Lab Special Funct Mat, Shenzhen Engn Lab Adv Technol Ceram, Guangdong Res Ctr Interfacial Engn Funct Mat,Coll, Shenzhen 518060, Peoples R China.
Fed Res Ctr KSC SB RASs, Lab Crystal Phys, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Sch Mat Sci & Technol, Guangzhou 510641, Peoples R China.
Доп.точки доступа:
Liu, Ying; Rong, Ximing; Li, Mingze; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhao, Jing; Xia, Zhiguo
}
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16.
Incorporating rare-earth
terbium
(III)
ions into Cs2AgInCl6:Bi nanocrystals toward tunable photoluminescence / Y. Liu, X. M. Rong, M. Z. Li [et al.]> // Angew. Chem. - 2020. -
Vol. 132
,
Is. 28
. - P. 11731-11737,
DOI
10.1002/ange.202004562. - Cited References: 43 . - ISSN 1521-3757
РУБ
Chemistry, Multidisciplinary
Рубрики:
HALIDE DOUBLE PEROVSKITE
LEAD-FREE
LANTHANIDE
STABILITY
EMISSION
Кл.слова (ненормированные):
doping
--
energy transfer
--
perovskite nanocrystals
--
photoluminescence
--
terbium
Аннотация:
The incorporation of impurity ions or doping is a promising method for controlling the electronic and optical properties and the structural stability of halide perovskite nanocrystals (NCs). Herein, we establish relationships between rare‐earth ions doping and intrinsic emission of lead‐free double perovskite Cs2AgInCl6 NCs to impart and tune the optical performances in the visible light region. Tb3+ ions were incorporated into Cs2AgInCl6 NCs and occupied In3+ sites as verified by both crystallographic analyses and first‐principles calculations. Trace amounts of Bi doping endowed the characteristic emission (5D4→7F6‐3) of Tb3+ ions with a new excitation peak at 368 nm rather than the single characteristic excitation at 290 nm of Tb3+. By controlling Tb3+ ions concentration, the emission colors of Bi‐doped Cs2Ag(In1−xTbx)Cl6 NCs could be continuously tuned from green to orange, through the efficient energy‐transfer channel from self‐trapped excitons to Tb3+ ions. Our study provides the salient features of the material design of lead‐free perovskite NCs and to expand their luminescence applications.
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Держатели документа:
Univ Sci, Sch Materials Sciences, Beijing Municipal Key Lab New Energy Materials, Technology Beijing,Technologies,Engn, Beijing, P. R. China.
Shenzhen Univ, Coll Materials Sci, Guangdong Res Ctr Interfacial Engn Functional Mat, Shenzhen Key Lab Special Functional Materials, Shenzhen, P. R. China.
Kirensky Inst Phys, Fed Res Ctr KSC SB RASs, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Engn Phys, Radioelectronics, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
S China Univ Technology, Sch Materials Sci, State Key Lab Luminescent Materials, Guangdong Prov Key Lab Fiber Laser Materials, Guangzhou, P. R. China.
Доп.точки доступа:
Liu, Ying; Rong, Ximing; Li, Mingze; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhao, Jing; Xia, Zhiguo
}
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17.
Synthesis, crystal structure,
luminescence, and thermophysical properties of TbGaGe2O7 / L. T. Denisova, M. S. Molokeev, A. S. Krylov [et al.]> // Phys. Solid State. - 2021. -
Vol. 63
,
Is. 1
. - P. 75-78,
DOI
10.1134/S106378342101008X. - Cited References: 11. - We are grateful to the Krasnoyarsk Regional Center for Collective Use, Krasnoyarsk Scientific Center, Siberian Branch of the Russian Academy of Sciences . - ISSN 1063-7834
Кл.слова (ненормированные):
terbium
gallogermanate
--
solid-state synthesis
--
crystal structure
--
luminescence
--
high-temperature specific heat
--
thermodynamic properties
Аннотация:
Germanate TbGaGe2O7 has been obtained from the initial Tb2O3, Ga2O3, and GeO2 oxides by the solid-phase synthesis. The germanate structure has been established by X-ray diffraction. Room-temperature luminescence spectra of the compound have been recorded. The effect of temperature on the heat capacity of the oxide compound has been investigated by differential scanning calorimetry. The thermodynamic properties of the compound have been calculated from the experimental Cp = f(T) data.
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Публикация на русском языке
Синтез, кристаллическая структура, люминесценция и теплофизические свойства TbGaGe2O7 [Текст] / Л. Т. Денисова, М. С. Молокеев, А. С. Крылов [и др.] // Физ. тверд. тела. - 2021. - Т. 63 Вып. 1. - С. 76-79
Держатели документа:
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Denisova, L. T.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Irtyugo, L. A.; Beletskii, V. V.; Denisov, V. M.
}
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18.
Spin dynamics and
exchange interaction in orthoferrite TbFeO3 with non-Kramers rare-earth ion / S. A. Skorobogatov, K. A. Shaykhutdinov, D. A. Balaev [et al.]> // Phys. Rev. B. - 2022. -
Vol. 106
,
Is. 18
. - Ст. 184404,
DOI
10.1103/PhysRevB.106.184404. - Cited References: 41. - We acknowledge A. Podlesnyak for help with INS experiments and S. E. Nikitin for stimulating discussion. The reported study was funded by RFBR, Project No. 20-32-90142. This research used resources at Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory . - ISSN 2469-9950
Кл.слова (ненормированные):
Dispersion (waves)
--
Electric fields
--
Metal ions
--
Neutron scattering
--
Perovskite
--
Rare earths
--
Spin dynamics
--
Temperature
--
Terbium
compounds
Аннотация:
The low-temperature spin dynamics of the orthorhombic TbFeO3 perovskite has been studied. It has been found that the inelastic neutron scattering (INS) spectrum of the investigated compound contains two modes corresponding to different sublattices. It is shown that the iron subsystem orders antiferromagnetically at TN=632 K and exhibits the high-energy magnon dispersion. The magnetic dynamics of this subsystem has been described within the linear spin wave theory and the in-plane and out-of-plane exchange anisotropy has been demonstrated. The approach proposed previously to describe the magnon dispersion in the TmFeO3 compound has been used. Three levels of the nondispersive crystal electric field corresponding to Tb3+ ions have been found in the energy region below 40 meV at about 17, 26, and 35 meV. The behavior of the magnetic correlation length of the
terbium
subsystem has been determined by studying the diffuse scattering at different temperatures. The evolution of this subsystem has been numerically described within the point charge model. It is shown that the numerical data agree satisfactorily with the experiment and with the general concept of the single-ion approximation applied to the rare-earth subsystem of orthorhombic perovskites.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center, KSC, SB, RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Доп.точки доступа:
Skorobogatov, S. A.; Скоробогатов, Станислав Алексеевич; Shaykhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Balaev, D. A.; Балаев, Дмитрий Александрович; Pavlovskii, M. S.; Павловский, Максим Сергеевич; Krasikov, A. A.; Красиков, Александр Александрович; Terentjev, K. Yu.; Терентьев, Константин Юрьевич
}
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19.
Magnetic structure and
magnetic interactions in
terbium
iron borate TbFe3(BO3)4 / A. Vorotynov, C. Ritter [и др.]> //
Workshop INTAS - Siberian Branch of the Russian Academy of Sciences Scientific Cooperation on the Research Project "New Layered 3d-Materials for Spintronics" : (books of abstrats) : March 20-23, 2007 Krasnoyarsk, Russia. - Красноярск, 2007. - P. 13
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Доп.точки доступа:
Vorotynov, A. M.; Воротынов, Александр, Михайлович; Ritter, C.; Petrakovskii, G. A.; Петраковский, Герман Антонович; Balaev, A. D.; Балаев, Александр Дмитриевич; Temerov, V. L.; Темеров, Владислав Леонидович; Gudim, I. A.; Гудим, Ирина, Анатольевна; "New Layered 3d-Materials for Spintronics", Workshop INTAS - Siberian Branch of the Russian Academy of Sciences Scientific Cooperation on the Research Project(2007 ; Marh ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН; ETH Zurich and Paul Scherrer Institute, Condensed Matter Research with Neutron and Muons Department; Institute of Physics of Polish Academy of Sciences; Институт неорганической химии им. А.В.Николаева СО РАН
}
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