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The dielectric properties of Fe$_{3}$O$_{4}$ magnetic nanoparticles with an insulating coating layer of SiO$_{2}$ were investigated. At high temperatures, the changes of the dielectric constant and loss induced by the magnetic field are…

Materials Science · Physics 2011-03-18 C. -C. Chang , L. Zhao , M. -K. Wu

Soft x-ray absorption experiments on the transition metal L2,3 edge of multiferroic MnWO4 and antiferromagnetic CoWO4 are presented. The observed linear polarization dependence, analyzed by full-multiplet calculations, is used to determine…

Strongly Correlated Electrons · Physics 2015-05-20 N. Hollmann , Z. Hu , T. Willers , L. Bohaty , P. Becker , A. Tanaka , H. H. Hsieh , H. -J. Lin , C. T. Chen , L. H. Tjeng

We identify a magnetoelectric correction that completes the theoretical description of spin splitting (SS) in magnetic systems. Derived from the Dirac equation, this term couples local magnetic moments to the scalar electric potential,…

Strongly Correlated Electrons · Physics 2025-08-25 Carlos Mera Acosta

Exchange bias is a unidirectional magnetic anisotropy that often arise from interfacial interaction of a ferromagnetic and antiferromagnetic layers. In this article, we show that a metallic layer with spin-orbit coupling can induces an…

Mesoscale and Nanoscale Physics · Physics 2024-11-26 Adam B. Cahaya , Ansell Alvarez Anderson , Anugrah Azhar , Muhammad Aziz Majidi

By combining neutron four-circle diffraction and polarized neutron diffraction techniques we have determined the complex spin structures of a multiferroic, YMn2O5, that exhibits two ferroelectric phases at low temperatures. The obtained…

The rotating magnetocaloric effect (RMCE) is a recent interest in magnetic refrigeration technique in which the cooling effect is attained by rotating the anisotropic magnetocaloric material from one orientation to the other in a fixed…

Strongly Correlated Electrons · Physics 2019-10-21 Anzar Ali , Shama , Yogesh Singh

Transition metal molybdenum oxides A2Mo3O8 (A= Mn, Fe, Co) are known to be polar magnets where A ions are located in either octahedrally or tetrahedrally coordinated sites. In this paper we predict that their polarizations can be reversed…

Materials Science · Physics 2025-03-18 Yaxin Gao , Sha Li , Menghao Wu

Dielectric properties were investigated under various magnitudes and directions of magnetic field (H) for a chiral magnetic insulator Cu2OSeO3. We found that the skyrmion crystal induces electric polarization (P) along either in-plane or…

Strongly Correlated Electrons · Physics 2015-06-05 S. Seki , S. Ishiwata , Y. Tokura

Magnetic nanoparticles (MNPs) exhibiting superparamagnetic properties might generate large magnetic dipole-dipole interaction with electron spins in organic semiconductors (OSECs). This concept could be considered analogous to the effect of…

The magnetoelectric (ME) effect traditionally arises from complex spin-orbital interactions in multiferroic materials. In this work, we propose a distinct, intrinsic mechanism for the magnetoelectric effect in quasi-2D magnetic systems that…

Mesoscale and Nanoscale Physics · Physics 2025-11-26 Jin-Xin Hu

Given the paucity of single phase multiferroic materials (with large ferromagnetic moment), composite systems seem an attractive solution in the quest to realize magnetoelectric cou-pling between ferromagnetic and ferroelectric order…

Mesoscale and Nanoscale Physics · Physics 2014-09-15 P. Jain , Q. Wang , M. Roldan , A. Glavic , V. Lauter , C. Urban , Z. Bi , T. Ahmed , J. Zhu , M. Varela , Q. Jia , M. R. Fitzsimmons

Magnetoelectric (ME) effect has been studied in a structure of a magnetostrictive TbFe2 alloy, two piezoelectric Pb(Zr,Ti)O3 (PZT) ceramics, and two nonmagnetic flakes. The ME coupling originates from the magnetic-mechanical-electric…

Materials Science · Physics 2012-10-30 K. Bi , Y. G. Wang , D. A. Pan , W. Wu

We have investigated the magnetoelectric and magnetodielectric response in FeVO$_4$, which exhibits a change in magnetic structure coincident with ferroelectric ordering at $T_{N2}$$\approx$15 K. Using symmetry considerations, we construct…

Materials Science · Physics 2015-05-19 A. Dixit , G. Lawes , A. B. Harris

How the magnetoelectric coupling actually occurs on a microscopic level in multiferroic BiFeO3 is not well known. By using the high-resolution single crystal neutron diffraction techniques, we have determined the electric polarization of…

We have investigated the variation of induced ferroelectric polarization under magnetic field with various directions and magnitudes in a staggered antiferromagnet Ba$_2$CoGe$_2$O$_7$. While the ferroelectric polarization cannot be…

Strongly Correlated Electrons · Physics 2015-05-19 H. Murakawa , Y. Onose , S. Miyahara , N. Furukawa , Y. Tokura

We present a comprehensive study of the magnetocaloric effect (MCE) in the Nd$T_4$B system where $T$ = Fe, Co, and Ni. These compounds are ferromagnetic kagome materials with tunable ordering temperatures, transition width, and magnetic…

Two prominent magnetoelectrics MnWO$_4$ and CuO possess low-temperature commensurate paraelectric magnetically ordered phase. Here using Monte Carlo simulations we show that the walls between the domains of this phase are ferroelectric with…

Strongly Correlated Electrons · Physics 2015-06-04 I. P. Lobzenko , P. P. Goncharov , N. V. Ter-Oganessian

The spin-driven component of electric polarization in a single crystal of multiferroic BiFeO$_{3}$ was experimentally investigated in pulsed high magnetic fields up to 41 T. Sequential measurements of electric polarization for various…

Strongly Correlated Electrons · Physics 2020-01-08 Shiro Kawachi , Shin Miyahara , Toshimitsu Ito , Atsushi Miyake , Nobuo Furukawa , Jun-ichi Yamaura , Masashi Tokunaga

In this technical note, we address the comments on the energy estimates for Magnetoelectric Spin-orbit (MESO) Logic, a new logic device proposed by the authors. We provide an analytical derivation of the switching energy, and support it…

Mesoscale and Nanoscale Physics · Physics 2017-03-07 Sasikanth Manipatruni , Dmitri E. Nikonov , Huichu Liu , Ian A. Young

We summarize the existing experimental data on electromagnons in multiferroic RMn2O5 compounds, where R denotes a rare earth ion, Y or Bi, and discuss a realistic microscopic model of these materials based on assumption that the microscopic…

Materials Science · Physics 2009-11-13 A. B. Sushkov , M. Mostovoy , R. Valdes Aguilar , S. -W. Cheong , H. D. Drew
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