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Вид документа : Статья из журнала
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Автор(ы) : Nenert G., Bezmaternykh L. N., Vasiliev A. N., Palstra TTM
Заглавие : Magnetic, structural, and dielectric properties of CuB(2)O(4)
Разночтения заглавия :авие SCOPUS: Magnetic, structural, and dielectric properties of Cu B2 O4
Место публикации : Phys. Rev. B: AMER PHYSICAL SOC, 2007. - Vol. 76, Is. 14. - Ст.144401. - ISSN 1098-0121, DOI 10.1103/PhysRevB.76.144401
Примечания : Cited References: 30
Предметные рубрики: WEAK FERROMAGNETISM
COPPER METABORATE
MAGNETOELECTRIC PHENOMENA
BAMNF4
CR2O3
ANTIFERROMAGNETICS
CONSTANT
Аннотация: We have studied the magnetic, structural, and dielectric properties of a single crystal of CuB(2)O(4). We show that both reported magnetic transitions are observable in the magnetization, irrespective of the measured direction of the crystal. This is in agreement with recent neutron data. More importantly, our study demonstrates the absence of dielectric anomalies at the various magnetic transitions despite the reported magnetoelectric symmetry. This demonstrates that the polarization remains zero at any temperature. Consequently, we interpret our data as the evidence for a very weak or the absence of linear magnetoelectric coupling in this material.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Platunov M. S., Kazak N. V., Dudnikov V. A., Wilhelm F., Hen A., Diadkin V., Dovgaliuk I., Bosak A., Temerov V. L., Gudim I. A., Knyazev Yu. V., Gavrilkin S. Yu., Rogalev A., Ovchinnikov S. G.
Заглавие : Probing magnetic sublattices in multiferroic Ho0.5Nd0.5Fe3(BO3)4 single crystal using X-ray magnetic circular dichroism
Место публикации : ArXiv. - 2018. - Ст.1804.07057
Примечания : Cited References: 28. - The study was supported in part by the grants of the Russian Foundation for Basic Research (project nos. 16-32-60049, 17-02-00826) and the Foundation for Assistance to Small Innovative Enterprises (FASIE, UMNIK program). The authors thank the BM01A/ID28/ID12 beamlines staffs for help during the experiment and also gratefully acknowledge the beamtime provision (proposal HC-1804) by the ESRF.
Предметные рубрики: Antiferromagnetics
Magnetic anisotropy
Magnetoelectric effects, multiferroics
Аннотация: Using element-specific X-ray magnetic circular dichroism (XMCD) technique we have studied different magnetic sublattices in a multiferroic Ho0.5Nd0.5Fe3(BO3)4 single crystal. The XMCD measurements at the L2,3-edges of Ho and Nd, and at the Fe \emph{K}-edge have been performed at T=2K under a magnetic field up to 17 T applied along the trigonal c-axis as well as in the basal ab-plane. All three magnetic sublattices are shown to undergo a spin-reorientation transition under magnetic field applied along the c-axis. On the contrary, when magnetic field is applied in the ab-plane only the holmium atoms exhibit a magnetization jump. Thus, the element-specific magnetization curves revealed the Ho sublattice to be much stronger coupled to the Fe one than the Nd sublattice. The results demonstrate that the Ho3+ subsystem plays even more dominant role in magnetic behavior of Ho0.5Nd0.5Fe3(BO3)4 crystal than in pure HoFe3(BO3)4 crystal.
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