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1.

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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2.

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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3.

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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4.

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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