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Coexistence of the electric polarization and conductive current in the bismuth–neodymium ferrite garnet films / S. S. Aplesnin, A. N. Masyugin, M. N. Volochaev, T. Ishibashi // J. Mater. Sci. Mater. Electron. - 2021. - Vol. 32. - P. 3766-3781, DOI 10.1007/s10854-020-05121-9. - Cited References: 42 . - ISSN 0957-4522
Кл.слова (ненормированные):
Bismuth -- Bismuth compounds -- Dielectric materials -- Epitaxial films -- Ferroelectricity -- Gallium compounds -- Garnets -- Hysteresis -- Iron compounds -- Neodymium -- Neodymium compounds -- Piezoelectricity -- Single crystals -- Substrates
Аннотация: The Nd1Bi2Fe5O12/Nd2Bi1Fe4Ga1O12 polycrystalline films on the glass substrate and the Nd0.5Bi2.5Fe5O12 epitaxial films on the single-crystal gadolinium gallium garnet substrate have been investigated by impedance and dielectric spectroscopy. The inductive contribution to the impedance and two relaxation channels related to ferroelectric domains and migration polarization have been established. The magnetocapacitance and magnetoimpedance have been determined. The conductive and polarization currents and the phase difference between them for the films of two types have been determined. The critical temperatures of the polarization disappearance and hysteresis I–V have been found. A model of the polarization caused by the piezoelectric effect and flexoelectric interaction has been proposed. I–V hysteresis is explained by the presence of ferroelectric domains near the interface and is associated with the hysteresis of the electric polarization.

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Держатели документа:
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan

Доп.точки доступа:
Aplesnin, S. S.; Masyugin, A. N.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Ishibashi, T.
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Colossal magnetostriction and electrostriction of bismuth-substituted neodymium iron garnet films / S. S. Aplesnin [et al.] // J. Magn. Magn. Mater. - 2018. - Vol. 464. - P. 44-49, DOI 10.1016/j.jmmm.2018.05.038. - Cited References: 27. - This study were supported by the Russian Foundation for Basic Research project №18-52-00009 Bel_a, № 18-32-00079 mol_a, the state order № 3.5743.2017/6.7. . - ISSN 0304-8853
Кл.слова (ненормированные):
Thermal expansion -- Magnetostriction -- Electrostriction
Аннотация: Electro- and magnetostriction mechanisms and temperature behavior of the length of bismuth-substituted neodymium iron garnet films on glass and gallium gadolinium garnet have been investigated. Electric- and magnetic-field and temperature dependences of the electro- and magnetostriction constants have been determined. It has been established that the magnetostriction constant changes its sign upon temperature variation. The experimental data are explained using a model of dipole glass with the magnetoelectric and magnetoelastic interaction.

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Держатели документа:
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics of SB RAS, Krasnoyarsk, Russian Federation
Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata, Japan

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Masyugin, A. N.; Sitnicov, M. N.; Rybina, U. I.; Ishibashi, T.
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Comparison of the absorption spectra of Nd3+ ions in the NdFe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4, and Ho0.75Nd0.25Fe3(BO3)4 crystals / A. L. Sukhachev, A. V. Malakhovskii, C. S. Nelson [et al.] // Phys. Solid State. - 2021. - Vol. 63, Is. 1. - P. 113-121, DOI 10.1134/S1063783421010200. - Cited References: 21. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science, to the research project: number 19-42-240003 “Influence of the local en-vironment on magneto-optical properties of f–f transitions in rare-earth aluminum and iron borates” . - ISSN 1063-7834
Кл.слова (ненормированные):
neodymium -- hantite-structure ferroborates -- f–f electronic transitions -- structural transition
Аннотация: The polarized optical absorption spectra in the region of a series of the f–f transitions of Nd3+ ions in the Ho0.75Nd0.25Fe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4, and NdFe3(BO3)4 crystals at 90 K have been compared. The spectral features related to the difference in the local environment of Nd3+ ions in these crystals have been established. In the region of the transition 4I9/2 → 4G5/2 + 2G7/2 of Nd3+ ions in the Ho0.75Nd0.25Fe3(BO3)4 crystal, the appearance of some absorption lines at the structural transition R32 → P3121 around ~200 K due to the local symmetry variation has been found. The intensity of these lines smoothly increases with a decrease in temperature from the transition point. The temperature dependence of the lattice parameters of the Ho0.75Nd0.25Fe3(BO3)4 crystal has been measured. It has been found that, at the transition temperature, the lattice parameter a changes stepwise, which is indicative of the occurrence of a first-order phase transition. The lattice parameter c changes smoothly.

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Публикация на русском языке Сравнение спектров поглощения ионов Nd3+ в кристаллах NdFe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4 и Ho0.75Nd0.25Fe3(BO3)4 [Текст] / А. Л. Сухачев, А. В. Малаховский, C. S. Nelson [и др.] // Физ. тверд. тела. - 2021. - Т. 63 Вып. 1. - С. 111-119

Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, United States

Доп.точки доступа:
Sukhachev, A. L.; Сухачев, Александр Леонидович; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Nelson, C. S.; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович
}
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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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Coupled R and Fe magnetic excitations in RFe 3(BO 3) 4 multiferroics / A. M. Kuzmenko [et al.] // Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P. 269-272, DOI 10.4028/www.scientific.net/SSP.190.269 . - ISBN 9783037854365
Кл.слова (ненормированные):
Magnetic resonance -- Rare-earth iron borates -- Terahertz spectroscopy -- Antiferromagnetics -- Coupled mode -- Exchange coupled -- Frequency ranges -- G factors -- Iron borate -- Magnetic excitations -- Multiferroics -- Resonance mode -- Strong interaction -- Transmission spectrums -- Antiferromagnetism -- Electron transitions -- Gadolinium -- Ions -- Magnetic materials -- Magnetic permeability -- Magnetic resonance -- Terahertz spectroscopy -- Neodymium
Аннотация: Various resonance modes were observed in the transmission spectra of rare-earth iron borates RFe 3(BO 3) 4 (R = Nd 3+, Sm 3+, Gd 3+) at the frequency range 100-600 GHz, which were attributed to collective magnetic excitations in the exchange coupled Fe- and R-subsystems, i.e. antiferromagnetic (Fe) resonance and electron transitions in the R-ions. Strong interaction of the Fe and R oscillations was revealed and theoretically analyzed taking into account feature of the R-ion ground state. Intensities of the coupled modes (contributions to magnetic permeability) strongly depend on a difference of Fe and R ions g-factors that allows defining the sign of the latter. In particular, an appreciable intensity of exchange (Nd) modes in NdFe 3(BO 3) 4 is caused by g Nd?,|| < 0 whereas in GdFe 3(BO 3) 4 with gGd ? gFe ? 2 the exchange (Gd) modes were hided due to compensation of Fe and Gd contributions. In SmFe 3(BO 3) 4, despite a negligible Sm g-factor, the Sm modes were clear observed due to their excitation via coupling with the Fe-subsystem. В© (2012) Trans Tech Publications.

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Доп.точки доступа:
Kuzmenko, A. M.; Кузьменко А.М.; Mukhin, A. A.; Ivanov, V.Yu.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)
}
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Crystal structure of bismuth-containing NdFe3(BO3)4 in the temperature range 20–500 K / E. S. Smirnova, O. A. Alekseeva, A. P. Dudka [et al.] // Acta Crystallogr. B. - 2022. - Vol. 78, Pt. 1. - P. 1-13, DOI 10.1107/S205252062101180X. - Cited References: 44. - This work was performed using the equipment of the Shared Research Center FSRC `Crystallography and Photonics' RAS supported by the Russian Ministry of Science and Higher Education. This work was supported by the Ministry of Science and Higher Education within the State assignment FSRC `Crystallography and Photonics' RAS . - ISSN 2052-5206

РУБ Chemistry, Multidisciplinary + Crystallography
Рубрики:
MAGNETIC PHASE-TRANSITIONS
UNIT-CELL PARAMETERS
DIFFRACTION
Кл.слова (ненормированные):
neodymium iron borate -- multiferroic -- crystal structure -- multi-temperature -- single-crystal X-ray diffraction -- Mossbauer spectroscopy -- characteristic temperature
Аннотация: Neodymium iron borate NdFe3(BO3)4 is an intensively studied multiferroic with high electric polarization values controlled by a magnetic field. It is characterized by a large quadratic magnetoelectric effect, rigidity in the base plane and a rather strong piezoelectric effect. In this work, the atomic structure of (Nd0.91Bi0.09)Fe3(BO3)4 was studied by single-crystal X-ray diffraction in the temperature range 20–500 K (space group R32, Z = 3). The Bi atoms found in the composition partially substitute the Nd atoms in the 3a position; they entered the structure due to the growth conditions in the presence of Bi2Mo3O12. It was shown that in the temperature range 20–500 K there is no structural phase transition R32→P3121, which occurs in rare-earth iron borates (RE = Eu–Er, Y) with an effective rare-earth cation radius smaller than that of Nd. The temperature dependence of the unit-cell c parameter reveals a slight increase on cooling below 90 K, which is similar to the results obtained previously for iron borates of Gd, Y and Ho. The atomic distances (Nd,Bi)—O, (Nd,Bi)—B, (Nd,Bi)—Fe, Fe—O, Fe—B and Fe—Fe in the iron chains and between chains decrease steadily with decreasing temperature from 500 to 90 K, whereas the B1(3b)—O distance does not change and the average B2(9e)—O distance increases slightly. There is a uniform decrease in the atomic displacement parameters with decreasing temperature, with a more pronounced decrease for the Nd(3a) and O2(9e) atoms. The O2(9e) atoms are characterized by the maximum atomic displacement parameters and the most elongated atomic displacement ellipsoids. The characteristic Debye and Einstein temperatures, and the static component in the atomic displacements were determined for cations using multi-temperature diffraction data. It was shown that the Nd cations have the weakest bonds with the surrounding atoms and the B cations have the strongest.

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Держатели документа:
Russian Acad Sci, Fed Sci Res Ctr Crystallog & Photon, Shubnikov Inst Crystallog, Moscow 119333, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Smirnova, E. S.; Alekseeva, O. A.; Dudka, A. P.; Verin, I. A.; Artemov, V. V.; Lyubutina, M. V.; Gudim, I. A.; Гудим, Ирина Анатольевна; Frolov, K. V.; Lyubutin, I. S.; Russian Ministry of Science and Higher Education; Ministry of Science and Higher Education within the State assignment FSRC 'Crystallography and Photonics' RAS
}
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Dominance of many-body effects over the one-electron mechanism for band structure doping dependence in Nd2-xCexCuO4: the LDA + GTB approach / M. M. Korshunov [et al.] // J. Phys.: Condens. Matter. - 2007. - Vol. 19, Is. 48. - Ст. 486203, DOI 10.1088/0953-8984/19/48/486203. - Cited References: 36 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
NARROW ENERGY BANDS
   HUBBARD-MODEL
   SUPERCONDUCTORS
   DENSITY
   TEMPERATURE
   ORBITALS
   WAVE
Кл.слова (ненормированные):
Antiferromagnetism -- Band structure -- Correlation methods -- Crystal structure -- Local density approximation -- Superconducting materials -- Electronic correlations -- Fermionic quasiparticles -- Neodymium compounds
Аннотация: In the present work we report band structure calculations for the high-temperature superconductor Nd2-xCexCuO4 in the regime of strong electronic correlations within an LDA + GTB method, which combines the local density approximation (LDA) and the generalized tight-binding method (GTB). The two mechanisms of band structure doping dependence were taken into account. Namely, the one-electron mechanism provided by the doping dependence of the crystal structure, and the many-body mechanism provided by the strong renormalization of the fermionic quasiparticles due to the large on-site Coulomb repulsion. We have shown that, in the antiferromagnetic and in the strongly correlated paramagnetic phases of the underdoped cuprates, the main contribution to the doping evolution of the band structure and Fermi surface comes from the many-body mechanism.

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Держатели документа:
[Korshunov, M. M.
Gavrichkov, V. A.
Ovchinnikov, S. G.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, R-660036 Krasnoyarsk, Russia
[Korshunov, M. M.] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
[Nekrasov, I. A.
Kokorina, E. E.] Russian Acad Sci, Inst Electrophys, R-620016 Ekaterinburg, Russia
[Pchelkina, Z. V.] Russian Acad Sci, Inst Met Phys, Ural Div, R-620041 Ekaterinburg, Russia
ИФ СО РАН
L V Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation
Max-Planck-Institut fur Physik Komplexer Systeme, D-01187 Dresden, Germany
Institute of Electrophysics, Russian Academy of Sciences, Ural Division, Amundsena 106, 620016 Yekaterinburg, Russian Federation
Institute of Metal Physics, Russian Academy of Sciences-Ural Division, GSP-170, 620041 Yekaterinburg, Russian Federation

Доп.точки доступа:
Korshunov, M. M.; Коршунов, Максим Михайлович; Gavrichkov, V. A.; Гавричков, Владимир Александрович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Nekrasov, I. A.; Kokorina, E. E.; Pchelkina, Z. V.
}
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    Exploration of structural, thermal, vibrational and spectroscopic properties of new noncentrosymmetric double borate Rb3NdB6O12 / V. V. Atuchin [et al.] // Adv. Powder Technol. - 2017. - Vol. 28, Is. 5. - P. 1309-1315, DOI 10.1016/j.apt.2017.02.019. - Cited References: 42. - We are grateful to Guochun Zhang for the crystal structure data on K3YB6O12, and O. Tsydenova and A. Sarapulova for her consultations. This research was supported by SB RAS Program No.II.2P (No. 0356-2015-0412) and RSF (14-22-0143). The reported study was funded by RFBR according to the research projects 15-02-04950 and 15-52-53080, 16-32-00351, 16-52-48010 and 17-52-53031. Also, the work was supported by Act 211 Government of the Russian Federation, contract 02.A03.21.0011 and by the Ministry of Education and Science of the Russian Federation (4.1346.2017/PP). . - ISSN 0921-8831
   Перевод заглавия: Изучение структурных, тепловых, колебательных и спектроскопических свойств нового нецентросимметричного кристалла двойного бората Rb3NdB6O12
Кл.слова (ненормированные):
Rubidium neodymium borate -- Solid state reaction -- Rietveld refinement -- DSC -- Raman scattering
Аннотация: New noncentrosymmetric rare earth borate Rb3NdB6O12 is found in the ternary system Rb2O–Nd2O3–B2O3. The Rb3NdB6O12 powder was fabricated by solid state synthesis at 1050 K for 72 h and the crystal structure was obtained by the Rietveld method. Rb3NdB6O12 crystallized in space group R32 with unit cell parameters a = 13.5236(4), c = 31.162(1) Å, Z = 3. From DSC measurements, the reversible phase transition (I type) in Rb3NdB6O12 is observed at 852–936 K. The 200 μm thick tablet is transparent over the spectral range of 0.3–6.5 μm and the band gap is found as Eg ∼ 6.29 eV. Nonlinear optical response of Rb3NdB6O12 tested via SHG is estimated to be higher than that of K3YB6O12. Blue shift of Nd luminescent lines is found in comparison with other borates. The vibrational parameters of Rb3NdB6O12 are evaluated by experimental methods.

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Держатели документа:
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation
Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk, Russian Federation
Institute of Chemistry, Tyumen State University, Tyumen, Russian Federation
Laboratory of Single Crystal Growth, South Ural State University, Chelyabinsk, Russian Federation
Laboratory of Oxide Systems, Baikal Institute of Nature Management, SB RAS, Ulan-Ude, Russian Federation
Laboratory of Coherent Optics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Laboratory for Nonlinear Optics and Spectroscopy, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Nanodiagnostics and Nanolithography, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Photonics and Laser Technologies, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Condensed Matter Spectroscopy, Institute of Automation and Electrometry, SB RAS, Novosibirsk, Russian Federation
Laboratory of High Pressure Minerals and Diamond Deposits, Institute of Geology and Mineralogy, SB RAS, Novosibirsk, Russian Federation

Доп.точки доступа:
Atuchin, V. V.; Subanakov, A. K.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Bazarov, B. G.; Bazarova, J. G.; Dorzhieva, S. G.; Gavrilova, T. A.; Krylov, A. S.; Крылов, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Pugachev, A. M.; Tushinova, Y. L.; Yelisseyev, A. P.
}
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    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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10.

Heat capacity and thermodynamic properties of germanates CaR2Ge3O10 (R = Pr, Nd) in the region of 320–1000 K / L. T. Denisova, M. S. Molokeev, N. A. Galiakhmetova [et al.] // Russ. J. Phys. Chem. A. - 2022. - Vol. 96, Is. 5. - P. 913-917, DOI 10.1134/S0036024422050077. - Cited References: 30. - The authors are grateful to the Krasnoyarsk Regional Shared Resource Center of the Krasnoyarsk Science Center. This work was performed as part of a State Task for Siberian Federal University, project no. FSRZ-2020-0013 . - ISSN 0036-0244
Кл.слова (ненормированные):
neodymium and praseodymium calcium germanates -- differential scanning calorimetry -- high-temperature heat capacity
Аннотация: Sequential annealing of stoichiometric mixtures of CaCO3, Pr6O11(Nd2O3), and GeO2 in air at 1423–1473 K yields germanates CaPr2Ge3O10 and CaNd2Ge3O10. Their crystal structure is refined via X-ray diffraction. The high-temperature heat capacity (320–1000 K) is measured by means of differential scanning calorimetry. The thermodynamic properties of germanates are calculated using experimental dependences Cp = f(T).

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Публикация на русском языке Теплоемкость и термодинамические свойства германатов CaR2Ge3O10 (R = Pr, Nd) в области 320–1000 K [Текст] / Л. Т. Денисова, М. С. Молокеев, Н. А. Галиахметова [и др.] // Журн. физ. химии. - 2022. - Т. 96 № 5. - С. 615-620

Держатели документа:
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Denisova, L. T.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Galiakhmetova, N. A.; Denisov, V. M.; Belousova, N. V.
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