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1.
Исследование теплового расширения
и теплоемкости керамики CaCu[[d]]3[[/d]]Ti4O[[d]]12[[/d]] / М. В. Горев [и др.]> // Физ. тверд. тела. - 2012. -
Т. 54
,
Вып. 9
. - С. 1675-1679 . - ISSN 0367-3294
Аннотация:
Выполнены измерения теплового расширения керамики CaCu3Ti4O12 в широком интервале температур 120-1200 K. Качество исследованных образцов подтверждается хорошим согласием результатов измерений теплоемкости в интервале 2-300 K и в окрестности фазового перехода магнитной природы при 25 K с данными для монокристалла. Аномалий в тепловом расширении, которые могли бы быть связаны с предполагавшимся другими исследователями фазовым переходом при 726-732 K, обнаружено не было. Исследовано влияние на тепловое расширение термической обработки образца в атмосфере гелия и на воздухе. Работа выполнена при поддержке гранта президента РФ по поддержке ведущих научных школ РФ (НШ-4828.2012.2).
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Переводная версия
Investigation of the thermal
expansion
and heat capacity of the CaCu[[d]]3[[/d]]Ti[[d]]4[[/d]]O[[d]]12[[/d]] ceramics. - [Б. м. : б. и.]
Держатели документа:
Институт физики им. Л.В. Киренского СО РАН
Доп.точки доступа:
Горев, Михаил Васильевич; Gorev M.V.; Флёров, Игорь Николаевич; Flerov, I. N.; Карташев, Андрей Васильевич; Kartashev A.V.; Guillemet-Fritsch, S.
}
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2.
Investigation of the
thermal
expansion
and heat capacity of the CaCu[[d]]3[[/d]]Ti[[d]]4[[/d]]O[[d]]12[[/d]] ceramics / M. V. Gorev [et al.]> // Phys. Solid State. - 2012. -
Vol. 54
,
Is. 9
. - P. 1785-1789,
DOI
10.1134/S1063783412090120. - Cited References: 22. - This study was supported by the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools of the Russian Federation (grant no. NSh-4828.2012.2). . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
GIANT DIELECTRIC-CONSTANT
HIGH-TEMPERATURES
Аннотация:
The thermal
expansion
of the CaCu3Ti4O12 ceramics has been measured over a wide temperature range 120–1200 K. The high quality of the samples under study has been confirmed by good agreement of the results of measurements of the heat capacity in the range 2–300 K and in the vicinity of the phase transition of magnetic nature at 25 K with the data for the single crystal. No anomalies in the thermal
expansion
that can be associated with the phase transition at 726–732 K assumed by other investigators have been found. The influence exerted on the thermal
expansion
by the heat treatment of the sample in a helium atmosphere and in air has been investigated.
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Публикация на русском языке
Исследование теплового расширения и теплоемкости керамики CaCu[[d]]3[[/d]]Ti4O[[d]]12[[/d]] // Физика твердого тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54, Вып. 9. - С. 1675-1679. - ISSN 0367-3294
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Guillemet-Fritsch, S.
}
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3.
Makarov, I. A.
Dependence of the critical temperature of high-temperature cuprate superconductors on hoppings and spin correlations between CuO2 planes / I. A. Makarov, S. G. Ovchinnikov, E. I. Shneider> // J. Exp. Theor. Phys. - 2012. -
Vol. 114
,
Is. 2
. - P. 329-342,
DOI
10.1134/S1063776112020264. - Cited References: 73. - This study was supported in part by the Presidium of the Russian Academy of Sciences (program "Quantum Physics of Condensed Media," project no. 18.7), jointly by the Siberian and Ural branches of the Russian Academy of Sciences (integration projects project no. 40), the Russian Foundation for Basic Research (project no. 09-02-00127), the Presidential Program in Support of Young Scientists in Russia (project no. MK-1683.2010.2), and the federal target program "Specialists" (project no. P891). One of the authors (E.I.Sh.) gratefully acknowledges support from the nonprofit Dynasty foundation. . - ISSN 1063-7761
РУБ
Physics, Multidisciplinary
Рубрики:
T-J MODEL
BAND HUBBARD-MODEL
SINGLE-CRYSTALS
TRANSITION-TEMPERATURE
FERMI-SURFACE
DOPING DEPENDENCE
THERMAL-
EXPANSION
COPPER OXIDES
ANISOTROPY
LA2-XSRXCUO4
Аннотация:
The influence of interlayer hoppings on the superconducting transition temperature (T c) in bilayer cuprates has been studied. The parameter of hopping between layers is expressed as t ⊥(k) = t ⊥(cos(k x ) − cos(k y ))2 and treated as a small perturbation for the states of two CuO2 planes described by the t-t′-t″-J* model. In the generalized mean field approximation for dx2−y2{d_{{x. } - {y. }}} symmetry of the superconducting gap, neither the interlayer hopping or exchange interaction, nor the pair hopping between CuO2 layers provides an additional mechanism of Cooper pair formation or an increase in T c. In the concentration dependence of T c, the bilayer splitting of the upper Hubbard band of quasi-holes is manifested as two peaks with temperatures slightly lower than the maximum T c for a single-layer cuprate. Interlayer antiferromagnetic spin correlations suppress bilayer splitting.
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Макаров, Илья Анатольевич. Зависимость критической температуры высокотемпературных сверхпроводников от перескоков и спиновых корреляций между CuO2-плоскостями [Текст] / И. А. Макаров, С. Г. Овчинников, Е. И. Шнейдер // Журн. эксперим. и теор. физ. : Наука, 2012. - Т. 141 Вып. 2. - С. 372-386
Держатели документа:
[Makarov, I. A.
Ovchinnikov, S. G.
Shneider, E. I.] Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
[Makarov, I. A.
Ovchinnikov, S. G.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Shneider, E. I.] Reshetnikov Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Shneider, E. I.; Шнейдер, Елена Игоревна; Макаров, Илья Анатольевич
}
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4.
Heat conductivity and
thermal
expansion
of crystal strontium tetraborate SrB4O7 / P. A. Popov [et al.]> // Dokl. Phys. - 2012. -
Vol. 57
,
Is. 2
. - P. 54-56,
DOI
10.1134/S1028335812020036. - Cited References: 13. - This work was in part supported by a grant of the President of the Russian Federation (NSh-4645.2010.2), by the ABTsP "Development of the Scientific Potential of Higher Schools" (grant no. 2.1.1/10747), and by the Programs of OFN of the Russian Academy of Sciences "Physics of New Materials and Structures" (grant no. 2.5.2). . - ISSN 1028-3358
РУБ
Mechanics + Physics, Multidisciplinary
Аннотация:
An experimental investigation of the heat conductivity and thermal
expansion
of an strontium tetraborate (SBO) crystal in wide temperature intervals was demonstrated. The single crystals used for manufacturing samples were grown by the Czochralski method from a melt with a stoichiometric ratio of components. The blend was synthesized from strontium carbonate and boric acid. The components were mechanically mixed in a carbon-glass bowl with the addition of a small amount of distilled water. The mixture was heated on a sandy bath to 60-90°C and shuffled with periodic addition of small portions of water until the carbonic-gas bubbles ceased to release. The growth of crystals was carried out on a seed oriented in the crystallographic direction b, and the extraction rate amounted to 2.4 mm/day over 6 days. the results obtained indicate the promising use of the SBO crystal matrix as a multifunctional optical material.
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Теплопроводность и тепловое расширение кристалла тетрабората стронция SrB4O7 [Текст] / П. А. Попов [и др.] // Доклады Академии наук. - 2012. - Т. 442 № 4. - С. 462-464
Держатели документа:
[Popov, P. A.
Solomennik, V. D.] Bryansk State Univ, Bryansk 241036, Russia
[Zaitsev, A. I.
Zamkov, A. V.
Gorev, M. V.] Russian Acad Sci, Siberian Branch, Inst Phys, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Popov, P. A.; Solomennik, V. D.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; Gorev, M. V.; Горев, Михаил Васильевич
}
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5.
Studies of the
heat capacity and thermal
expansion
of the Na0.95K0.05NbO3 solid solution / M. V. Gorev [et al.]> // Phys. Solid State. - 2014. -
Vol. 56
,
Is. 2
. - P. 367-372,
DOI
10.1134/S1063783414020115. - Cited References: 27. - This study was supported by the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools of the Russian Federation (grant no. NSh-4828.2012.2) and the Russian Foundation for Basic Research (project no. 12-02-31799 mol_a). . - ISSN 1063-7834. - ISSN 1090-6460
РУБ
Physics, Condensed Matter
Рубрики:
SODIUM NIOBATE
PHASE-TRANSITIONS
TEMPERATURE-RANGE
SINGLE-CRYSTALS
KNBO3
FERROELECTRICS
DIFFRACTION
OCTAHEDRA
Аннотация:
The heat capacity and thermal
expansion
of ceramic samples of the Na0.95K0.05NbO3 solid solution have been investigated over a wide temperature range of 100-750 K. The observed anomalies in the heat capacity and thermal
expansion
at T (4) = 297 K, T (3) = 535 K, T (2) = 665 K, and T (1) a parts per thousand 710 K correspond to the sequences of phase transitions N - Q - G - S - T1. It has been shown that, as a result of the phase transitions, the unit cell volume at T (4) and T (2) decreases, and at T (3) and T (1), increases with increasing temperature. The directions of the shift of the phase transition temperatures induced by hydrostatic pressure have been determined. It has been established that all structural transformations are accompanied by relatively small variations in the entropy. Different mechanisms of the structural distortions have been discussed.
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Исследования теплоемкости и теплового расширения твердого раствора Na0.95K0.05NbO3 [Текст] / М. В. Горев [и др.] // Физ. тверд. тела. - 2014. - Т. 56 Вып. 2. - С. 362-367
Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660074, Russia
Southern Fed Univ, Inst Phys Res, Rostov Na Donu 344090, Russia
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Raevskaya, S. I.; Ivliev, M. P.; Raevskii, I. P.; Flerov, I. N.; Флёров, Игорь Николаевич; Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools of the Russian Federation [NSh-4828.2012.2]; Russian Foundation for Basic Research [12-02-31799 mol_a]
}
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6.
Magnetic, magnetoelastic, and
spectroscopic properties of TmAl3(BO3)4 / A. A. Demidov [et al.]> // J. Exp. Theor. Phys. - 2014. -
Vol. 119
,
Is. 4
. - P. 737-744,
DOI
10.1134/S106377611410015X. - Cited References: 28. - This study was supported financially by the Russian Foundation for Basic Research (project no. 13-02-12442ofi_m2) and (K.N.B.) by the grant no. MK-1700.2013.2 from the President of the Russian Federation. . - ISSN 1063-7761. - ISSN 1090-6509
РУБ
Physics, Multidisciplinary
Рубрики:
THERMAL-
EXPANSION
CRYSTALS
MAGNETOSTRICTION
HoAl3(BO3)4
GARNETS
Аннотация:
The thermodynamic properties of alumoborate TmAl3(BO3)4 single crystal are studied experimentally and theoretically. A theoretical analysis based on the crystal field model makes it possible to interpret all measured parameters. The crystal field parameters are determined. The temperature (3–300 K) and field (up to 9 T) dependences of magnetization are described. The field and temperature dependences of multipole moments of the Tm3+ ion in TmAl3(BO3)4 make it possible to describe magnetostriction and low-temperature anomalies in thermal
expansion
.
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Магнитные, магнитоупругие и спектроскопические свойства TmAl3(BO3)4 [Текст] / А. А. Демидов [и др.] // Журн. эксперим. и теор. физ. : Наука, 2014. - Т. 146 Вып. 4. - С. 835-843
Держатели документа:
Bryansk State Tech Univ, Bryansk 241035, Russia
Moscow MV Lomonosov State Univ, Moscow 119992, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Spect, Moscow 142190, Russia
Доп.точки доступа:
Demidov, A. A.; Volkov, D. V.; Gudim, I. A.; Гудим, Ирина Анатольевна; Eremin, E. V.; Еремин, Евгений Владимирович; Boldyrev, K. N.; Russian Foundation for Basic Research [13-02-12442ofi_m2]; Russian Federation [MK-1700.2013.2]
}
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7.
Studies of Heat
Capacity and Thermal
Expansion
of Na1-xKxNbO3 and Na1-xLixNbO3 Solid Solution Ceramics / M. V. Gorev [и др.]> //
Int. Workshop on Phase Transit. and Inhomogeneous States in Oxides : book of abstracts. - Kazan, 2015. - P. 23
Перевод заглавия:
Исследования теплоемкости и теплового расширения твердых растворов Na1-xKxNbO3 и Na1-xLixNbO3
Материалы конференции
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Raevskaya, S. I.; Раевская С. И.; Titov, V. V.; Титов В. В.; Raevskii, I. P.; Раевский И.П.; Flerov, I. N.; Флёров, Игорь Николаевич; International Workshop on Phase Transitions and Inhomogeneous States in Oxides(2015 ; june ; 22-25 ; Kazan); "Фазовые переходы и неоднородные состояния в оксидах", международный семинар(2015 ; июнь ; 22-25 ; Казань)
}
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8.
Fedorov, A. S.
Expansion
of endohedral fullerene formation statistical model / A. S. Fedorov, M. A. Visotin> //
Third Asian school-conference on physics and technology of nanostructured materials (ASCO-NANOMAT 2015) : proceedings. - Vladivostok : Dalnauka, 2015. - Ст. V.22.09o. - P. . - ISBN 978-5-8044-1556-4
Перевод заглавия:
Особенности спектра стоячих спиновых волн в гранулированных и градиентных мультислойных пленках на основе кобальта
Материалы конференции
Доп.точки доступа:
Visotin, M. A.; Высотин, Максим Александрович; Федоров, Александр Семенович; Asian School-Conference on Physics and Technology of Nanostructured Materials(3 ; 2015 ; Aug. ; 19-26 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(3 ; 2015 ; авг. ; 19-26 ; Владивосток)
}
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9.
Large isotropic negative
thermal
expansion
above a structural quantum phase transition / S. U. Handunkanda [et al.]> // Phys. Rev. B. - 2015. -
Vol. 92
,
Is. 13
. - Ст. 134101,
DOI
10.1103/PhysRevB.92.134101. - Cited References:35. - The authors also acknowledge the valuable conversations with Joe Budnick and Gabe Aeppli. Work at the University of Connecticut is supported by National Science Foundation Award No. DMR-1506825. Work at the University of Costa Rica is supported by Vicerrectoria de Investigacion under Project No. 816-B5-220, and work at Argonne National Laboratory is supported by the US Department of Energy, Office of Basic Energy Sciences under Contract No. DE-AC02-06CH11357. R.T.B. acknowledges support from the Yale Prize Postdoctoral Fellowship. The construction of HERIX was partially supported by the NSF under Grant No. DMR-0115852. . - ISSN 1098. - ISSN 1550-235X
Рубрики:
SCF3 CRYSTAL
CUBIC SCF3
DYNAMICS
SCATTERING
SRTIO3
Аннотация:
Perovskite structured materials contain myriad tunable ordered phases of electronic and magnetic origin with proven technological importance and strong promise for a variety of energy solutions. An always-contributing influence beneath these cooperative and competing interactions is the lattice, whose physics may be obscured in complex perovskites by the many coupled degrees of freedom, which makes these systems interesting. Here, we report signatures of an approach to a quantum phase transition very near the ground state of the nonmagnetic, ionic insulating, simple cubic perovskite material ScF3, and show that its physical properties are strongly effected as much as 100 K above the putative transition. Spatial and temporal correlations in the high-symmetry cubic phase determined using energy- and momentum-resolved inelastic x-ray scattering as well as x-ray diffraction reveal that soft mode, central peak, and thermal
expansion
phenomena are all strongly influenced by the transition.
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Держатели документа:
Univ Connecticut, Dept Phys, Storrs, CT 06269 USA.
Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA.
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia.
Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
Univ Costa Rica, Ctr Invest Ciencia & Ingn Mat, San Jose 2060, Costa Rica.
Univ Costa Rica, Escuela Fis, San Jose 2060, Costa Rica.
Argonne Natl Lab, Div Mat Sci, Argonne, IL 60349 USA.
Yale Univ, Dept Phys, New Haven, CT 06520 USA.
Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
Argonne Natl Lab, Argonne, IL 60349 USA.
Доп.точки доступа:
Handunkanda, S. U.; Curry, E. B.; Voronov, V. N.; Воронов, Владимир Николаевич; Said, Ayman H.; Guzman-Verri, G. G.; Brierley, R. T.; Littlewood, P. B.; Hancock, J. N.
}
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10.
EPR study of
Gd3+ local structure in ScF3 crystal with negative thermal
expansion
coefficient / A. Antuzevics [et al.]> // Phys. Scr. - 2015. -
Vol. 90
,
Is. 11
. - Ст. 115801,
DOI
10.1088/0031-8949/90/11/115801. - Cited References: 32. - We are grateful to Professor S Ovchinnikov for providing ScFINF3/INF samples. This work was supported by L-KC-11-0005 project Nr.KC/2.1.2.1.1/10/01/006,5.3 . - ISSN 0031-8949
Перевод заглавия:
ЭПР исследование локальной структуры гадолиния в кристалле трехфтористого скандия с отрицательным коэффициентом теплового расширения
РУБ
Physics, Multidisciplinary
Рубрики:
ELECTRON-PARAMAGNETIC-RESONANCE
SPIN-HAMILTONIAN PARAMETERS
SINGLE-CRYSTALS
SUPERPOSITION-MODEL
CENTERS
SPECTRA
PHASE
TEMPERATURE
SIMULATION
Кл.слова (ненормированные):
electron paramagnetic resonance
--
Gd3+
--
ScF3
--
negative thermal
expansion
Аннотация:
Zero field splitting (ZFS) of Gd3+ impurity in ScF3 is studied by electron paramagnetic resonance at 77 and 295 K. ZFS parameter b4 values obtained from angular dependence simulations show that regardless of negative thermal
expansion
in ScF3 temperature dependence of |b4| is similar to other cubic fluoroperovskites. Our analysis of ZFS parameters indicates that the local structure of Gd3+ centres expands positively with temperature. © 2015 The Royal Swedish Academy of Sciences.
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Держатели документа:
Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga, Latvia
L. V. Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Antuzevics, A.; Rogulis, U.; Fedotovs, A.; Berzins, D.; Voronov, V. N.; Воронов, Владимир Николаевич; Purans, J.
}
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11.
The mechanism of
the area negative thermal
expansion
in KBe2BO3F2 family crystals: A first-principles study / X. Jiang [et al.]> // J. Appl. Phys. - 2016. -
Vol. 119
,
Is. 5
. - Ст. 055901,
DOI
10.1063/1.4941266. - Cited References: 56. - This work was supported by the National Scientific Foundations of China (Grant No. 11474292), the Special Foundation of the Director of Technical Institute of Physics and Chemistry (TIPC), and the Opening Project of the Key Laboratory of Cryogenics in TIPC, Chinese Academy of Sciences, China “863” Project (No. 2015AA034203) and “973” Project (No. 2014CB921301). . - ISSN 0021-8979
Перевод заглавия:
Механизм отрицательного теплового расширения площади в семействе кристаллов KBe2BO3F2: первопринципный расчет
РУБ
Physics, Applied
Рубрики:
PSEUDOPOTENTIALSSTATE
COMPRESSIBILITY
TETRAHEDRA
RANGE
STATE
Аннотация:
A very recent study demonstrated that the KBe2BO3F2 (KBBF) family of crystals, including KBBF, RbBe2BO3F2, and CsBe2BO3F2, are the only known borates exhibiting a rarely occurring isotropic area negative thermal
expansion
(NTE) behavior, over a very large temperature range. In the present work, the NTE mechanism in these crystals is comprehensively investigated using the first-principles calculations. It is revealed that the area NTE behavior mainly originates from the concerted distortion of [BeO3F] tetrahedra in the two-dimensional [Be2BO3F2] framework with respect to temperature, while the [BO3] triangles remain almost rigid. Moreover, the different magnitude of NTE effect in the three crystals is attributed to the interaction difference between the alkali metal atoms (K, Rb, or Cs) and the [Be2BO3F2] layer. © 2016 AIP Publishing LLC.
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Держатели документа:
Center for Crystal Research and Development, Key Lab of Functional Crystals and Laser Technology of Chinese Academy of Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
University of Chinese Academy of Sciences, Beijing, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, China
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, China
Доп.точки доступа:
Jiang, X.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Li, W.; Wu, S.; Lin, Z.; Wu, Y.; Chen, C.
}
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12.
Thermal properties and
phase transition in the fluoride, (NH4)3SnF7 / A. V. Kartashev [et al.]> // J. Solid State Chem. - 2016. -
Vol. 237
. - P. 269-273,
DOI
10.1016/j.jssc.2016.02.027. - Cited References: 18. - This study was partially supported by the Russian Foundation for Basic Research (RFBR), research Project no. 15-02-02009a. . - ISSN 0022-4596
РУБ
Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
Heat-capacity
Chemistry
Кл.слова (ненормированные):
Phase transition
--
Fluorides
--
Heat capacity
--
Entropy
--
Thermal
expansion
--
High pressure
Аннотация:
Calorimetric, dilatometric and differential thermal analysis studies were performed on (NH4)3SnF7 for a wide range of temperatures and pressures. Large entropy (δS0=22 J/mol K) and elastic deformation (δ(ΔV/V)0=0.89%) jumps have proven that the Pa-3虠Pm-3m phase transition is a strong first order structural transformation. A total entropy change of ΔS0=32.5 J/mol K is characteristic for the order-disorder phase transition, and is equal to the sum of entropy changes in the related material, (NH4)3TiF7, undergoing transformation between the two cubic phases through the intermediate phases. Hydrostatic pressure decreases the stability of the high temperature Pm-3m phase in (NH4)3SnF7, contrary to (NH4)3TiF7, characterised by a negative baric coefficient. The effect of experimental conditions on the chemical stability of (NH4)3SnF7 was observed. © 2016 Elsevier Inc.
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Держатели документа:
Kirensky Institute of Physics, Siberian Department of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Astafijev Krasnoyarsk State Pedagogical University, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian State University, Krasnoyarsk, Russian Federation
Krasnoyarsk State Agrarian University, Krasnoyarsk, Russian Federation
Institute of Chemistry, Far Eastern Department of the Russian Academy of Sciences, Vladivostok, Russian Federation
Доп.точки доступа:
Kartashev, A. V.; Карташев, Андрей Васильевич; Gorev, M. V.; Горев, Михаил Васильевич; Bogdanov, E. V.; Богданов, Евгений Витальевич; Flerov, I. N.; Флёров, Игорь Николаевич; Laptash, N. M.
}
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13.
Thermal
expansion
and
permittivity of (Ba1-xBi2x/3)TiO3 solid solutions / M. V. Gorev [et al.]> // Phys. Solid State. - 2011. -
Vol. 53
,
Is. 10
. - P. 2073-2079,
DOI
10.1134/S1063783411100143. - Cited References: 24. - This study was supported by the Council on Grants from the President of the Russian Federation for the Support of Leading Scientific Schools (grant NSh-4645.2010.2). . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
BARIUM-TITANATE
CERAMICS
BATIO3
BEHAVIOR
PHASE
FERROELECTRICS
Аннотация:
The strain, the thermal
expansion
coefficient, and the permittivity of ceramic samples of (Ba1 - x Bi-2x/3)TiO3 solid solutions with x = 0, 0.01, 0.03, and 0.05 have been studied in the temperature range 120-700 K. Based on an analysis of the results, the temperature-composition phase diagram has been refined, and the temperature dependence of the polarization has been calculated.
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Держатели документа:
[Gorev, M. V.
Flerov, I. N.
Bondarev, V. S.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Gorev, M. V.
Bondarev, V. S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Maglione, M.
Simon, A.] Univ Bordeaux 1, ICMCB CNRS, Pessac, France
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Science, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk 660041, Russian Federation
ICMCB-CNRS, Universite de Bordeaux 1, Pessac, France
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Maglione, M.; Simon, A.
}
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14.
Thermal
expansion
, phase
diagrams and barocaloric effects in (NH4)(2)NbOF5 / M. . Gorev [et al.]> // J. Phys.: Condens. Matter. - 2010. -
Vol. 22
,
Is. 18
. - Ст. 185901,
DOI
10.1088/0953-8984/22/18/185901. - Cited References: 17. - This work was supported in part by the Krasnoyarsk Regional Foundation for Support of Scientific and Scientific-Technological Investigations and RFBR in the framework of project 'Siberia' (Grant No. 09-02-98001), and the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools (project No. Nsh-1011.2008.2). . - ISSN 0953-8984
РУБ
Physics, Condensed Matter
Рубрики:
CRYSTAL-STRUCTURE
SOLID-STATE
OXYFLUORIDE
TRANSITION
ANION
Кл.слова (ненормированные):
Antiferromagnets
--
Ferromagnets
--
Heat capacities
--
High stress
--
Intermediate phase
--
Pippard relations
--
Structural phase transition
--
Transition temperature
--
Uniaxial pressures
--
Financial data processing
--
Phase diagrams
--
Phase transitions
--
Thermal stress
--
Tools
--
Thermal
expansion
Аннотация:
The thermal
expansion
along the a, b and c axes of a (NH4)(2)NbOF5 crystal was measured from 120 to 300 K. Anomalies of alpha(T) associated with previously reported phase transitions Cmc2(1) -> C-2 -> I a were observed along all directions at T-1 = 259.3 K and T-2 = 220.5 K. The analysis of thermal
expansion
and heat capacity in the frame of the Pippard relations has permitted us to determine the uniaxial pressure derivatives of the transition temperatures dT/d sigma(i). The T-sigma(i) phase diagrams have shown a tendency for the intermediate phase to disappear at high stress along the b and c axes. Intensive and extensive barocaloric effects near the structural phase transitions were found to be comparable with the caloric parameters of some ferroelectrics, ferromagnets and antiferromagnets.
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Держатели документа:
[Gorev, Michail
Bogdanov, Evgeny
Flerov, Igor] Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Gorev, Michail
Flerov, Igor] Siberian Fed Univ, Inst Engn Phys, Krasnoyarsk 660041, Russia
[Laptash, Nataly] Russian Acad Sci, Far Eastern Div, Inst Chem, Vladivostok 690022, Russia
ИФ СО РАН
LVKirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Akademgorodok 660036, Russian Federation
Institute of Engineering Physics, Siberian Federal University, av. Svobodny 79, Krasnoyarsk 660041, Russian Federation
Institute of Chemistry, Far Eastern Division, Russian Academy of Sciences, Vladivostok 690022, Russian Federation
Доп.точки доступа:
Gorev, M.; Bogdanov, E. V.; Богданов, Евгений Витальевич; Flerov, I. N.; Флёров, Игорь Николаевич; Laptash, N. M.
}
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15.
The magnetoelastic effect
in CoxMn1-xS solid solutions / S. S. Aplesnin [et al.]> // Solid State Commun. - 2010. -
Vol. 150
,
Is. 13-14
. - P. 564-567,
DOI
10.1016/j.ssc.2010.01.009. - Cited References: 13. - This work was supported by the Russian Foundation for Basic Research projects no. 08-02-00364-a, no. 08-02-90031, no. F08037, F08-229, and no. 09-02-00554-a. . - ISSN 0038-1098
РУБ
Physics, Condensed Matter
Рубрики:
YVO3 SINGLE-CRYSTAL
SPIN-STATE
TRANSITION
TRANSPORT
PHYSICS
LACOO3
Кл.слова (ненормированные):
Semiconductors
--
X-ray scattering
--
Galvanomagnetic effects
--
Thermal
expansion
--
Semiconductors
--
X-ray scattering
--
Galvanomagnetic effects
--
Thermal
expansion
--
Semiconductors
--
X-ray scattering
--
Coefficient of thermal
expansion
--
Magnetoelastic effects
--
Orbital ordering
--
Temperature hysteresis
--
Temperature range
--
Zero magnetic fields
--
Crystallization
--
Electric resistance
--
Magnetic field effects
--
Magnetoresistance
--
Manganese
--
Manganese compounds
--
Neon
--
Organic polymers
--
Scattering
--
Semiconductor quantum dots
--
Solid solutions
--
Solidification
--
Thermal stress
--
X ray scattering
--
Thermal
expansion
Аннотация:
The magnetization of cation-substituted CoxMn(1-x)S sulfides upon cooling in zero magnetic field and in a field in the temperature range 4-300 K has been measured and the resistance versus magnetic field (up to 10 kOe) dependences have been obtained. Magnetoresistance and temperature hysteresis of magnetization versus prehistory are found at the magnetic field H < 0.1 T and at T < 240 K. The interrelation between the magnetic and elastic subsystems of the CoxMn1-xS solid solutions has been established. A jump in the coefficient of thermal expansion is observed at the Neel temperature. The features of the physical properties are explained by orbital ordering. (C) 2010 Elsevier Ltd. All rights reserved.
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Держатели документа:
[Aplesnin, S. S.
Ryabinkina, L. I.
Romanova, O. B.
Har'kov, A. M.] MF Reshetneva Aircosm Siberian State Univ, Krasnoyarsk 660014, Russia
[Gorev, M. V.
Balaev, A. D.
Eremin, E. V.
Bovina, A. F.] Russian Acad Sci, KSC Siberian Branch, Ctr Shared, Krasnoyarsk 660036, Russia
КНЦ СО РАН
M.F. Reshetneva Aircosmic Siberian State University, Krasnoyarsk, 660014, Russian Federation
Center of shared using KSC Siberian branch, Russian Academy Science, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Ryabinkina, L. I.; Рябинкина, Людмила Ивановна; Romanova, O. B.; Романова, Оксана Борисовна; Har'kov, A. M.; Gorev, M. V.; Горев, Михаил Васильевич; Balaev, A. D.; Балаев, Александр Дмитриевич; Eremin, E. V.; Еремин, Евгений Владимирович; Bovina, A. F.; Бовина, Ася Федоровна
}
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16.
Investigation of thermal
expansion
, phase diagrams, and barocaloric effect in the (NH4)(2)WO2F4 and (NH4)(2)MoO2F4 oxyfluorides / M. V. Gorev [et al.]> // Phys. Solid State. - 2010. -
Vol. 52
,
Is. 1
. - P. 167-175,
DOI
10.1134/S1063783410010294. - Cited References: 27. - This study was performed within the framework of the Interdisciplinary Integration Project no. 34 of the Siberian Branch of the Russian Academy of Sciences and supported by the Krasnoyarsk Regional Science Foundation and the Russian Foundation for Basic Research within the framework of the project "Sibir'" ( grant no. 09-02-98001) and by the Council on Grants from the President of the Russian Federation for the Support of Leading Scientific Schools ( project no. NSh-1011.2008.2). . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
TRANSITIONS
CRYSTALS
DIFFRACTION
MECHANISM
PRESSURE
Аннотация:
The thermal
expansion
along the principal crystallographic axes of the (NH4)(2)WO2F4 and (NH4)(2)MoO2F4 oxyfluorides has been studied. The anomalous behavior of alpha (i) (T) due to the phase transitions has been revealed at T (1) = 271.4 K and T (2) a parts per thousand 180 K for the molybdate and at T (1) = 201.5 K and T (2) a parts per thousand 161 K for the tungstate. The quantities dT/dp and dT/d sigma (i) , which characterize the dependence of the phase transition temperatures on the hydrostatic and uniaxial pressures, have been determined from analyzing the results of studies of the thermal
expansion
and heat capacity with the use of the Pippard relations. The p-T and alpha (i) -T phase diagrams reflect different characters of the influence of the pressure on the stability of the initial and distorted phases of the oxyfluorides. The magnitudes of the extensive and intensive barocaloric effects determined in the vicinity of the structural phase transitions are as follows: Delta S (BCE) varies from approximately -10 to -17 J/mol K and Delta T (AD) a parts per thousand 8-17 K for the molybdate and Delta S (BCE) varies from approximately -10 to -17 J/mol K and Delta T (AD) a parts per thousand 8-13 K for the tungstate.
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Оригинал на русском языке
Исследование теплового расширения, фазовых диаграмм и барокалорического эффекта в оксифторидах (NH4)2WO2F4 и (NH4)2MoO2F4 [Текст] / М. В. Горев [и др.] // Физика твердого тела. - Санкт-Петербург : Федеральное государственное унитарное предприятие "Академический научно-издательский, производственно-полиграфический и книгораспространительский центр Российской академии наук "Издательство "Наука", 2010. - Т. 52 № 1. - С. 156-164
Держатели документа:
[Gorev, M. V.
Bogdanov, E. V.
Flerov, I. N.
Kocharova, A. G.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Gorev, M. V.
Flerov, I. N.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Laptash, N. M.] Russian Acad Sci, Far Estern Branch, Inst Chem, Vladivostok 690022, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Science, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobody 79, Krasnoyarsk 660041, Russian Federation
Institute of Chemistry, Far Estern Branch, Russian Academy of Sciences, ul. Stoletiya Vladivostoka 159, Vladivostok 690022, Russian Federation
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Bogdanov, E. V.; Богданов, Евгений Витальевич; Flerov, I. N.; Флёров, Игорь Николаевич; Kocharova, A. G.; Кочарова, Алла Георгиевна; Laptash, N. M.
}
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17.
Heat capacity and
thermal
expansion
study of Ba0.9Bi0.067(Ti1-xZrx)O-3 ceramics / M. . Gorev [et al.]> // J. Phys.: Condens. Matter. - 2007. -
Vol. 19
,
Is. 34
. - Ст. 346237,
DOI
10.1088/0953-8984/19/34/346237. - Cited References: 15 . - ISSN 0953-8984
РУБ
Physics, Condensed Matter
Рубрики:
BA(TI1-XZRX)O-3
STATE
Кл.слова (ненормированные):
Adiabatic calorimeters
--
Temperature range
--
Temperature regions
--
Thermal
expansion
anomaly
--
Barium
--
Ceramic materials
--
Dielectric properties
--
Expansion
--
Specific heat
--
Zirconium
--
Thermal
expansion
Аннотация:
For Ba0.9Bi0.067(Ti1-xZrx)O-3 (x = 0.04, 0.15) ceramics, the heat capacity C-p(T) and the thermal
expansion
alpha(T) were measured using an adiabatic calorimeter and an optical-mechanical dilatometer in the temperature range 100-420 K. Both compounds reveal diffuse heat capacity and thermal
expansion
anomalies: three anomalies in the temperature regions 150-250 K, 250-300 K (alpha(T) only) and 300-400 K at x = 0.04 and two anomalies in the regions 200 250 K and 250-350 K at x = 0.15. The results obtained are discussed together with the data on the dielectric properties.
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Держатели документа:
[Gorev, Michail
Bondarev, Vitaly
Flerov, Igor] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
[Maglione, Mario
Simon, Annie] Univ Bordeaux 1, CNRS, ICMCB, F-33608 Pessac, France
ИФ СО РАН
LVKirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
ICMCB-CNRS, Universite de Bordeaux i, 87 avenue ASchweitzer, 33608 Pessac, France
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Flerov, I. N.; Флёров, Игорь Николаевич; Maglione, M.; Simon, A.
}
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18.
Zobov, V. E.
Tree growth parameter in the Eden model on face-centered hypercubic lattices / V. E. Zobov, M. A. Popov> // Theor. Math. Phys. - 2005. -
Vol. 144
,
Is. 3
. - P. 1361-1371,
DOI
10.1007/s11232-005-0165-z. - Cited References: 19 . - ISSN 0040-5779
РУБ
Physics, Multidisciplinary + Physics, Mathematical
Рубрики:
BRANCHED POLYMERS
HIGH-TEMPERATURES
EXPANSION
CLUSTERS
SYSTEMS
TIME
Кл.слова (ненормированные):
Eden model
--
number of lattice trees
--
Monte Carlo method
--
growth parameter
--
singular points of generating function
--
large-dimension
expansion
--
face-centered hypercubic lattice
--
Eden model
--
Face-centered hypercubic lattice
--
Growth parameter
--
Large-dimension
expansion
--
Monte Carlo method
--
Number of lattice trees
--
Singular points of generating function
Аннотация:
In the Eden model, we investigate how the tree growth parameter depends on the space dimension d for face-centered hypercubic lattices. We find the first three terms of the 1/d-
expansion
for this parameter directly from the generating function without calculating the number of trees because the growth parameter is the reciprocal coordinate of the singular point of the tree generating function. The same growth parameter was calculated by computer experiment where the ratios between the numbers of trees without intersections and trees without restrictions in the dimensions 3, 4, 6, 8, and 10 were estimated by the Monte Carlo method on face-centered cubic lattices. The results of the two methods agree well. Comparing with the previously performed computer experiment for simple hypercubic lattices, we observe that the values of the singular exponents for the tree generating functions are close for two different types of lattices.
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Держатели документа:
RAS, Siberian Branch, Kirenskii Inst Phys, Novosibirsk, Russia
Krasnoyarsk State Univ, Krasnoyarsk, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Branch, RAS, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Popov, M. A.; Зобов, Владимир Евгеньевич
}
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19.
Heat capacity and
thermal
expansion
study of relaxor-ferroelectric Ba0.92Ca0.08Ti0.76Zr0.24O3 / M. . Gorev [et al.]> // J. Phys.: Condens. Matter. - 2004. -
Vol. 16
,
Is. 39
. - P. 7143-7150,
DOI
10.1088/0953-8984/16/39/045. - Cited References: 18 . - ISSN 0953-8984
РУБ
Physics, Condensed Matter
Рубрики:
CERAMICS
BA(TI1-XZRX)O-3
PEROVSKITES
Кл.слова (ненормированные):
Calorimetry
--
Dielectric properties
--
Ferroelectric materials
--
Perovskite
--
Phase transitions
--
Solid solutions
--
Specific heat
--
Thermal
expansion
--
Adiabatic calorimetry
--
Frequency dispersion
--
Polar domains
--
Relaxor ferroelectrics
--
Barium compounds
Аннотация:
Heat capacity and thermal
expansion
of the Ba0.92Ca0.08Ti0.76Zr0.24O3 compound is measured using the methods of adiabatic calorimetry and optic-mechanical dilatometry in the temperature range 100-370 K. Three blurred anomalies on the C-p(T) and alpha(T) dependencies are observed in the temperature range 200-360 K. The results of the studies are discussed together with data on the structure and dielectric properties in the framework of spherical random bond-random field model.
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Держатели документа:
CNRS, CEMES, F-31055 Toulouse, France
ИФ СО РАН
L V kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Sciau, P.; Savariault, J. M.
}
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20.
Zobov, V. E.
The coordinate of the singular point of generating functions of clusters in the high-temperature dynamics of spin lattice systems with axially symmetric interaction / V. E. Zobov, M. A. Popov> // Theor. Math. Phys. - 2003. -
Vol. 136
,
Is. 3
. - P. 1297-1311,
DOI
10.1023/A:1025603416535. - Cited References: 25 . - ISSN 0040-5779
РУБ
Physics, Multidisciplinary + Physics, Mathematical
Рубрики:
CONSISTENT FLUCTUATING FIELD
NUCLEAR-DOUBLE-RESONANCE
HEISENBERG PARAMAGNET
LINE SHAPE
RELAXATION
SPECTRUM
APPROXIMATION
CRYSTALS
MOMENT
CAF2
Кл.слова (ненормированные):
spin dynamics
--
singular points
--
expansion
over the reciprocal space dimension
--
Expansion
over the reciprocal space dimension
--
Singular points
--
Spin dynamics
Аннотация:
We investigate generating functions for equipped trees composed of double bonds of two sorts on a hypercubic lattice of dimension d with built-in fragments. Rules for constructing these clusters are chosen to ensure the estimate for coefficients of power series in time for the longitudinal and transverse autocorrelation functions of the spin system with axially symmetric interaction. We derive a system of two equations for the tree-generating functions and an equation for the generating functions of chains leading from the root to a fragment in a tree using the Bethe approximation and under the condition that mainly bonds of one sort are taken into account. For the face-centered hypercubic lattice, we find the First terms of the 1/d
expansion
for the coordinate of the singular point of the generating function in both the anisotropic and the isotropic cases taking fragments in the forms of a triangle from four bonds and a four-fold bound pair into account. The obtained result is written in terms of ratios of lattice sums and is generalized to nuclear spin systems with dipole-dipole interaction. The theoretical value of the singular-point coordinate agrees well with the experimental value calculated from the tail of the absorption spectrum of the nuclear magnetic resonance in a barium fluoride monocrystal.
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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Novosibirsk, Russia
Krasnoyarsk State Univ, Krasnoyarsk, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Branch, RAS, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Popov, M. A.; Зобов, Владимир Евгеньевич
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