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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Freydman A. L., Popkov S. I., Semenov S. V., Turchin P. P.
Заглавие : A capacitive dilatometer for measuring the magnetostriction, piezoelectric effect, and lInear thermal-expansion coefficient
Коллективы : Russian Foundation for Basic Research; Government of Krasnoyarsk krai; Krasnoyarsk Krai Foundation for Support of Scientific and R D Activities [16-48-243040]; Russian Foundation for Basic Research [16-3800245]
Место публикации : Tech. Phys. Lett. - 2018. - Vol. 44, Is. 2. - P.123-125. - ISSN 1063-7850, DOI 10.1134/S1063785018020074. - ISSN 1090-6533(eISSN)
Примечания : Cited References:11. - This study was supported by the Russian Foundation for Basic Research, the Government of Krasnoyarsk krai, the Krasnoyarsk Krai Foundation for Support of Scientific and R& D Activities (project no. 16-48-243040) and the Russian Foundation for Basic Research (project no. 16-3800245).
Аннотация: We describe a capacitive dilatometer for measuring the magnetostriction, piezoelectric effect, and linear thermal-expansion coefficient in the temperature range from 1.85 to 350 K in external magnetic fields of up to 90 kOe under a voltage of 1 kV, which operates on the basis of a Quantum Design PPMS commercial facility for studying the properties of solids.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mukhin A. A., Vorob'ev G. P., Ivanov V. Y., Kadomtseva A. M., Narizhnaya A. S., Kuz'menko A. M., Popov Y. F., Bezmaternykh L. N., Gudim I. A.
Заглавие : Colossal magnetodielectric effect in SmFe3(BO3)(4) multiferroic
Разночтения заглавия :авие SCOPUS: Colossal magnetodielectric effect in SmFe 3(BO 3) 4 multiferroic
Место публикации : JETP Letters. - 2011. - Vol. 93, Is. 5. - P.275-281. - ISSN 0021-3640, DOI 10.1134/S0021364011050079
Примечания : Cited References: 17. - We are grateful to A.K. Zvezdin and A.P. Pyatakov for the discussion of this work and valuable comments. This work was supported by the Russian Foundation for Basic Research, project nos. 10-02-00846 and 09-02-01355.
Предметные рубрики: FERROELECTRICITY
MAGNETOSTRICTION
GARNETS
Аннотация: The colossal (more than threefold) decrease in the dielectric constant E in the easy-plane SmFe3(BO3)(4) ferroborate in a magnetic field of similar to 5 kOe applied in the basal ab plane of the crystal has been found. A close relation of this effect to anomalies in the field dependence of the electric polarization has been established. It has been shown that this magnetodielectric effect is due to the contribution to E from the electric susceptibility, which is related to the rotation of spins in the ab plane, arises in the region of the antiferromagnetic ordering T T (N) and electric polarization in the magnetic field has been proposed, taking into account the additional anisotropy in the basal plane induced by the magnetoelastic stresses.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aplesnin S. S., Masyugin A. N., Sitnicov M. N., Rybina U. I., Ishibashi T.
Заглавие : Colossal magnetostriction and electrostriction of bismuth-substituted neodymium iron garnet films
Место публикации : J. Magn. Magn. Mater. - 2018. - Vol. 464. - P.44-49. - ISSN 03048853 (ISSN), DOI 10.1016/j.jmmm.2018.05.038
Примечания : 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.
Ключевые слова (''Своб.индексиров.''): 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Abramova G. M., Freydman A. L., Eremin E. V., Pogoreltcev E. I., Velikanov D. A.
Заглавие : Dielectric and magnetic anomalies in α-MnS single crystals at applied magnetic fIelds
Место публикации : J. Supercond. Nov. Magn. - 2022. - Vol. 35, Is. 1. - P.277-281. - ISSN 1557-1939, DOI 10.1007/s10948-021-06045-z. - ISSN 1557-1947(eISSN)
Примечания : Cited References: 22
Предметные рубрики: MAGNETOSTRICTION
ANISOTROPY
Аннотация: Temperature and magnetic field dependences of the magnetic susceptibility and dielectric permittivity of the α-MnS single crystal with NaCl structure are first investigated at around Neel temperature and at 4.2 K and H up to 70 kOe. A relation between the investigated properties was established. The founded phenomena can be due to the magnetostriction or magnetoelastic mechanism and the spin-dependent dipole moment.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dubrovskiy A. A., Rautskii M. V., Moshkina E. M., Yatsyk I. V., Eremina R. M.
Заглавие : EPR-determined anisotropy of the g-factor and magnetostriction of a Cu2MnBO5 single crystal with a ludwigite structure
Коллективы : Russian Foundation for Basic Research; Government of the Krasnoyarsk Territory [16-42-243028]
Место публикации : JETP Letters. - 2017. - Vol. 106, Is. 11. - P.716-719. - ISSN 0021-3640, DOI 10.1134/S0021364017230072. - ISSN 1090-6487(eISSN)
Примечания : Cited References:18. - This study was supported jointly by the Russian Foundation for Basic Research and the Government of the Krasnoyarsk Territory (project no. 16-42-243028).
Предметные рубрики: ELECTRON-SPIN-RESONANCE
Аннотация: Electron paramagnetic resonance (EPR) and magnetostriction of the Cu2MnBO5 single crystal have been studied. The EPR spectrum consists of a single Lorentzian line due to the exchange-coupled system of spins of Cu2+ and Mn3+ ions. It has been established experimentally that the g-factor in the paramagnetic region is strongly anisotropic and anomalously small, which is not typical of the exchange-coupled system of spins of Cu2+ and Mn3+ ions. At a temperature of 150 K, the g-factors along the crystallographic a, b, and c axes are 2.04, 1.96, and 1.87, respectively. Such small effective g-factor values can be due to the effect of the anisotropic Dzyaloshinskii-Moriya exchange interaction between the spins of Cu2+ and Mn3+ ions directed along the a axis. The presence of two Cu2+ and Mn3+ Jahn-Teller ions occupying four nonequivalent positions in the crystal is responsible for the absence of the inversion center. It is found that the behavior of the magnetostriction of Cu2MnBO5 is not typical of transition-metal crystals but is closer to the behavior of crystals containing rare-earth ions.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Begunov A. I., Demidov A. A., Gudim, I. A., Eremin E. V.
Заглавие : Features of magnetic, magnetoelectric and magnetoelastic properties of HoAl3(BO3)4
Коллективы : Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism
Место публикации : Solid State Phenom.: Selected, peer reviewed papers/ ed.: S. G. Ovchinnikov, A. Samardak: Trans Tech Publications, 2014. - Vol. 215: Trends in Magnetism: Nanomagnetism (EASTMAG-2013). - P.352-357. - ISSN 978-303835054-5, DOI 10.4028/www.scientific.net/SSP.215.352. - ISSN 1662-9779
Примечания : Cited References: 12
Ключевые слова (''Своб.индексиров.''): magnetoelectric polarization--magnetostriction--multiferroics
Аннотация: The main features of the magnetic, magnetoelastic and record magnetoelectric properties of a HoAl3(BO3)4 alumoborate single crystal have been studied experimentally and theoretically. For magnetic field B||a we have observed a giant polarization ΔPba(Ba) ≈ -5240 μC/m2 induced by field of 9 T at T = 5 K. We have calculated the magnetic characteristics of HoAl3(BO3)4 in the framework of a crystal-field model. The parameters of the crystal-field in HoAl3(BO3)4 have been determined. Good agreement of experimental and calculated magnetization curves Mc,˄c(B) and temperature dependences of magnetization Mc,˄c(T) was achieved. The field and temperature dependences of the multipole moments have been calculated for interpretation of magnetostriction in HoAl3(BO3)4. © (2014) Trans Tech Publications, Switzerland.Экспериментально и теоретически исследованы основные особенности магнитных и рекордных магнитоэлектрических свойств монокристалла алюмобората HoAl3(BO3)4. Обнаружена гигантская электрическая поляризация DPba(Ba) — –5240 мкКл/м2, индуцированная магнитным полем 9 Тл при Т = 5 К. Измеренные магнитные свойства и обнаруженные особенности проинтерпретированы в рамках единого теоретического подхода, который базируется на приближении молекулярного поля и расчетах в модели кристаллического поля для редкоземельного иона. Описаны экспериментальные температурные от 3 до 300 К и полевые до 9 Тл зависимости намагниченности. При интерпретации экспериментальных данных определены параметры кристаллического поля тригональной симметрии для иона Ho3+ в HoAl3(BO3)4.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladczuk L., Szymczak R., Nabialck A., Krynetskii I., Petrakovskii G. A., Sablina K. A., Vorotynov A. M., Szymczak H.
Заглавие : Giant magnetostriction of CuGeO3
Коллективы : International Conference on Low Temperature Physics
Место публикации : Czech. J. Phys. - 1996. - Vol. 46. - P.1969-1970. - ISSN 0011-4626, DOI 10.1007/BF02570976
Примечания : Cited References: 10
Предметные рубрики: SPIN-PEIERLS TRANSITION
COMPOUND CUGEO3
SYSTEM CUGEO3
STATE
Аннотация: The magnetostriction of CuGcO(3) single crystals has been measured in the temperature range from 5 to 16 K in magnetic fields up to 12 T. Giant values of the magnetostrictive strains along the b-axis is observed near the phase transition from the dimerized phase to the high field magnetic phase. The field induced magnetostriction in the antiferromagnetic phase is considerably smaller than in the dimerized phase.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : 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., Gudim I. A.
Заглавие : Magnetic anisotropy and magnetoelectric properties of Tb1-x Er (x) Fe-3(BO3)(4) ferroborates
Коллективы : Russian Foundation for Basic Research [07-02-00580]
Разночтения заглавия :авие SCOPUS: Magnetic anisotropy and magnetoelectric properties of Tb1 - X Er xFe3(BO3)4 ferroborates
Место публикации : J. Exp. Theor. Phys. - 2009. - Vol. 109, Is. 1. - P.68-73. - ISSN 1063-7761, DOI 10.1134/S1063776109070097
Примечания : Cited References: 18. - This study was supported by the Russian Foundation for Basic Research (project no. 07-02-00580).
Предметные рубрики: GDFE3(BO3)(4)
Ключевые слова (''Своб.индексиров.''): 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Demidov A. A., Volkov D. V., Gudim I. A., Eremin E. V., Boldyrev K. N.
Заглавие : Magnetic, magnetoelastic, and spectroscopic properties of TmAl3(BO3)4
Коллективы : Russian Foundation for Basic Research [13-02-12442ofi_m2]; Russian Federation [MK-1700.2013.2]
Место публикации : J. Exp. Theor. Phys.: MAIK Nauka-Interperiodica / Springer, 2014. - Vol. 119, Is. 4. - P.737-744. - ISSN 1063-7761, DOI 10.1134/S106377611410015X. - ISSN 1090-6509
Примечания : 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.
Предметные 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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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popova E. A., Volkov D. V., Vasiliev A. N., Demidov A. A., Kolmakova N. P., Gudim I. A., Bezmaternykh L. N., Tristan N., Skourski Y., Buchner B., Hess C., Klingeler R.
Заглавие : Magnetization and specific heat of TbFe3(BO3)(4): Experiment and crystal-field calculations
Разночтения заглавия :авие SCOPUS: Magnetization and specific heat of Tb Fe3 (B O3) 4: Experiment and crystal-field calculations
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2007. - Vol. 75, Is. 22. - Ст.224413. - ISSN 1098-0121, DOI 10.1103/PhysRevB.75.224413
Примечания : Cited References: 22
Предметные рубрики: GDFE3(BO3)(4)
MAGNETOSTRICTION
Аннотация: We have studied the thermodynamic properties of single-crystalline TbFe3(BO3)(4). Magnetization measurements have been carried out as a function of magnetic field (up to 50 T) and temperature up to 350 K with the magnetic field both parallel and perpendicular to the trigonal c axis of the crystal. The specific heat has been measured in the temperature range 2-300 K with a magnetic field up to 9 T applied parallel to the c axis. The data indicate a structural phase transition at 192 K and antiferromagnetic spin ordering at T-N approximate to 40 K. A Schottky anomaly is present in the specific-heat data around 20 K, arising due to two low-lying energy levels of the Tb3+ ions being split by f-d coupling. Below T-N, magnetic fields parallel to the c axis drive a spin-flop phase transition, which is associated with a large magnetization jump. The highly anisotropic character of the magnetic susceptibility is ascribed mainly to the Ising-like behavior of the Tb3+ ions in the trigonal crystal field. We describe our results in the framework of a unified approach which is based on mean-field approximation and crystal-field calculations.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Deich L. I., Ignatchenko V. A.
Заглавие : Magnetoelastic resonance in random-nonhomogeneous ferromagnetics with zero medium magnetostriction
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz. - 1995. - Vol. 107, Is. 3. - P.842-854. - ISSN 0044-4510
Примечания : Cited References: 14
Предметные рубрики: amorphous ferromagnets
spin-waves
magnetization
fluctuations
saturation
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chaudhury R. P., Lorenz B., Sun Y. Y., Bezmaternykh L. N., Temerov V. L., Chu C. W.
Заглавие : Magnetoelectricity and magnetostriction due to the rare-earth moment in TmAl3(BO3)(4)
Коллективы :
Разночтения заглавия :авие SCOPUS: Magnetoelectricity and magnetostriction due to the rare-earth moment in TmAl3 ( BO3 ) 4
Место публикации : Phys. Rev. B: AMER PHYSICAL SOC, 2010. - Vol. 81, Is. 22. - Ст.220402. - ISSN 1098-0121, DOI 10.1103/PhysRevB.81.220402
Примечания : Cited References: 25. - This work is supported in part by the U.S. Air Force Office of Scientific Research, the T. L. L. Temple Foundation, the J.J. and R. Moores Endowment, and the State of Texas through the TCSUH and at LBNL by the DOE.
Предметные рубрики: IRON BORATE GDFE3(BO3)(4)
CRYSTAL
MULTIFERROICS
Аннотация: The magnetic properties, the magnetostriction, and the magnetoelectric effect in the d-electron free rare-earth aluminum borate TmAl3(BO3)(4) are investigated between room temperature and 2 K. The magnetic susceptibility reveals a strong anisotropy with the hexagonal c axis as the hard magnetic axis. Magnetostriction measurements show a large effect of an in-plane field reducing both the a-axis and c-axis lattice parameters. The magnetoelectric polarization change in a and c directions reaches up to 300 mu C/ m(2) at 70 kOe with the field applied along the a axis. The magnetoelectric polarization is proportional to the lattice contraction in magnetic field. The results of this investigation prove the existence of a significant coupling between the rare-earth magnetic moment and the lattice in RAl3(BO3)(4) compounds (R=rare earth). They further show that the rare-earth moment itself will generate a large magnetoelectric effect which makes it easier to study and to understand the origin of the magnetoelectric interaction in this class of materials.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krotov S. S., Kadomtseva A.M., Popov Yu.F., Vorob’ev G.P., Kuvardin A.V., Kamilov K.I., Bezmaternykh L. N., Popova E.A.
Заглавие : Magnetostriction and electric polarization anomalies in GdFe3(BO3)4 single crystals at phase transitions
Место публикации : JMMM. - Vol. 300, Is. 1. - P.e426-e429. - DOI 10.1016/j.jmmm.2005.10.183
Примечания : Cited References: 10
Аннотация: Our experimental and theoretical investigation was aimed at the study of different gadolinium ferroborate single-crystal properties both at spontaneous and high magnetic field-induced phase transitions.
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14.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Pavlovskiy M. S., Dubrovskiy A. A., Shayhutdinov K. A., Terent'ev K. Yu.
Заглавие : Magnetostriction in hexagonal HoMnO3 single crystal
Коллективы : Moscow International Symposium on Magnetism, Московский государственный университет им. М.В. Ломоносова, Российский фонд фундаментальных исследований
Место публикации : Moscow International Symposium on Magnetism (MISM-2017): 1-7 July 2017 : book of abstracts. - 2017. - Ст.4PO-I1-46. - P.901 (Шифр 29916280)
РИНЦ,
Материалы конференции,
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15.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Pavlovskiy M. S., Dubrovskiy A. A., Shaikhutdinov K. A., Terent'yev K. Yu.
Заглавие : Magnetostriction in hexagonaL HOMNO3 single crystal
Коллективы : "Магнитные материалы. Новые технологии", Байкальская международная конференция, "Magnetic materials. New tecnologies", Baikal International Conference, Байкальская международная конференция "Магнитные материалы. Новые технологии", Иркутский государственный университет
Место публикации : Магнитные материалы. Новые технологии: тез. докл. VII Байкал. Междунар. конф./ Иркутский гос. ун-т. - Иркутск, 2016. - P.199. - ISBN 978-591-345-152-1: тез. докл. VII Байкал. Междунар. конф. BICMM-2016/ "Magnetic materials. New tecnologies", Baikal International Conference (7 ; 2016 ; Aug. ; 22–26 ; Listvyanka, Irkutsk region), Иркутский гос. ун-т; чл. прогр. ком.: Р. С. Исхаков, С. С. Аплеснин, С. Г. Овчинников. - ISBN 978-591-345-152-1
Примечания : Библиогр.: 1 назв.
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16.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Pavlovskiy M. S., Dubrovskiy A. A., Shaikhutdinov K. A., Terent'yev K. Yu.
Заглавие : Magnetostriction in hexagonal HoMnO3 single crystal
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Институт физики им. Л.В. Киренского Сибирского отделения РАН
Место публикации : VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016): abstracts/ ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk: KIP RAS SB, 2016. - Ст.O1.8. - P.46. - ISBN 978-5-904603-06-9 (Шифр -478014040)
Примечания : References: 1
Ключевые слова (''Своб.индексиров.''): hexagonal manganites--magnetostriction
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Abramova G. M., Petrakovskiy G. A., Zuberek R., Nabialek A., Boem M., Sokolov V. V., Bovina A. F.
Заглавие : Magnetostriction of FexMn1-xS (x=0.27) Crystals
Коллективы : Siberian Branch, Russian Academy of Sciences; INTAS [06-1000013-9002]
Разночтения заглавия :авие SCOPUS: Magnetostriction of FexMn1 - xS (x = 0.27) crystals
Место публикации : JETP Letters. - 2009. - Vol. 90, Is. 3. - P.207-210. - ISSN 0021-3640, DOI 10.1134/S0021364009150107
Примечания : Cited References: 19. - This work was supported by the Siberian Branch, Russian Academy of Sciences, and INTAS, joint project no. 06-1000013-9002.
Предметные рубрики: ALPHA-MNS
SINGLE-CRYSTALS
TRANSITION
MOSSBAUER
Аннотация: The magnetostriction of FexMn1-xS (x = 0.27) single crystals in strong magnetic fields up to 120 kOe has been investigated. It has been found that the magnetostriction reaches colossal values (+/-3 x 10(-4)) atypical of compounds of 3d elements. It has been found that the magnetostriction changes sign when varying temperature and magnetic field; this behavior indicates an important role of the spin-phonon interactions in the formation of the magnetic order in solid solutions of iron-manganese sulfides.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pavlovskii N. S., Dubrovskii A. A., Nikitin S. E., Semenov S. V., Terent'ev K. Yu., Shaikhutdinov K. A.
Заглавие : Magnetostriction of hexagonal HoMnO3 and YMnO3 single crystals
Коллективы : Russian Foundation for Basic Research [16-32-00163]
Место публикации : Phys. Solid State. - 2018. - Vol. 60, Is. 3. - P.520-526. - ISSN 1063-7834, DOI 10.1134/S1063783418030228. - ISSN 1090-6460(eISSN)
Примечания : Cited References:31. - We thank A. A. Podlesnyak (Oak Bridge National Laboratory) for discussions.; This study was supported by the Russian Foundation for Basic Research, project no. 16-32-00163.
Предметные рубрики: MAGNETIC PHASE-DIAGRAMS
RARE-EARTH
RMNO3
YB
ER
MULTIFERROICS
Аннотация: We report on the magnetostriction of hexagonal HoMnO3 and YMnO3 single crystals in a wide range of applied magnetic fields (up to H = 14 T) at all possible combinations of the mutual orientations of magnetic field H and magnetostriction ΔL/L. The measured ΔL/L(H, T) data agree well with the magnetic phase diagram of the HoMnO3 single crystal reported previously by other authors. It is shown that the nonmonotonic behavior of magnetostriction of the HoMnO3 crystal is caused by the Ho3+ ion; the magnetic moment of the Mn3+ ion parallel to the hexagonal crystal axis. The anomalies established from the magnetostriction measurements of HoMnO3 are consistent with the phase diagram of these compounds. For the isostructural YMnO3 single crystal with a nonmagnetic rare-earth ion, the ΔL/L(H, T) dependences are described well by a conventional quadratic law in a wide temperature range (4–100 K). In addition, the magnetostriction effect is qualitatively estimated with regard to the effect of the crystal electric field on the holmium ion.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskii G. A., Vorotynov A. M., Szymczak H., Gladczuk L.
Заглавие : Magnetostriction of the spin-Peierls magnet CuGeO3
Место публикации : Phys. Solid State: AMER INST PHYSICS, 1998. - Vol. 40, Is. 9. - P1520-1522. - ISSN 1063-7834, DOI 10.1134/1.1130590
Примечания : Cited References: 12
Предметные рубрики: NEUTRON-SCATTERING
CUPRATE CUGEO3
Аннотация: The temperature dependence of the longitudinal magnetostriction of a CuGeO3 single crystal is measured within the temperature range 4.2-20 K in a magnetic field of 10 T. As the temperature is raised above 4.2 K, the magnetostriction at first increases from vanishingly small values, attains a maximum at a temperature of approximately 12 K, and then abruptly drops as the temperature approaches the spin-Peierls transition. The results are interpreted on the basis of a simple model utilizing the real pattern of magnetic excitations in the spin system. (C) 1998 American Institute of Physics. [S1063-7834(98)02309-0].
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pankrats A. I., Petrakovskii G. A., Bezmaternykh L. N., Szymczak H., Nabialek A., Kundys B.
Заглавие : Magnetostriction studies of magnetic phase transitions in the copper metaborate CuB2O4
Место публикации : Phys. Solid State: SPRINGER, 2006. - Vol. 48, Is. 2. - P330-335. - ISSN 1063-7834, DOI 10.1134/S1063783406020235
Примечания : Cited References: 20
Аннотация: The field dependences of the longitudinal and transversal magnetostriction of the copper metaborate CuB2O4 were measured at various temperatures below the Neel point in magnetic fields directed along the tetragonal axis or in the basal plane. Magnetostriction was found to exhibit jumps at magnetic-field-induced phase transitions to a commensurate weak ferromagnetic state, as well as to grow smoothly in fields above and below the critical level. The magnetostriction observed in a magnetic field directed along the tetragonal axis is shown to be primarily caused by volume dilatation of the crystal. The experimental data obtained were used to construct the magnetic phase diagram of copper metaborate magnetized along the tetragonal axis.
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