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Strongly correlated materials with multiple order parameters provide unique insights into the fundamental interactions in condensed matter systems and present opportunities for innovative technological applications. A class of…

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

Using a joint approach of density functional theory and model calculations, we demonstrate that a prototypical charge ordered half-doped manganite, La$_{1/2}$Ca$_{1/2}$MnO$_3$ is multiferroic. The combination of a peculiar charge-orbital…

Materials Science · Physics 2010-07-15 Gianluca Giovannetti , Sanjeev Kumar , Jeroen van den Brink , Silvia Picozzi

Besides a drastic reduction in saturation magnetization of disordered Sr2FeMoO6 compared to highly ordered samples, magnetizations as a function of the temperature for different disordered samples may also show qualitatively different…

Materials Science · Physics 2007-05-23 Dinesh Topwal , U. Manju , Sugata Ray , S. Raj , D. D. Sarma , S. R. Krishnakumar , M. Bertolo , S. La Rosa , G. Cautero

Domain wall propagation has been measured in continuous, weakly disordered, quasi-two-dimensional, Ising-like magnetic layers that are subject to spatially periodic domain wall pinning potentials. The potentials are generated…

Mesoscale and Nanoscale Physics · Physics 2013-04-30 P. J. Metaxas , P. -J. Zermatten , R. L. Novak , S. Rohart , J. -P. Jamet , R. Weil , J. Ferré , A. Mougin , R. L. Stamps , G. Gaudin , V. Baltz , B. Rodmacq

The control of spin-dependent properties by voltage, not involving magnetization switching, has significant advantages for low-power spintronics. Here, we predict that the interfacial crystal Hall effect (ICHE) can serve for this purpose.…

Materials Science · Physics 2021-03-01 Ding-Fu Shao , Jun Ding , Gautam Gurung , Shu-Hui Zhang , Evgeny Y. Tsymbal

In materials with an intrinsic magnetoelectric (ME) effect, the energy density comprises the polarization, magnetization and ME energy densities. These three components of energy define local (subwavelength) characteristics of…

Mesoscale and Nanoscale Physics · Physics 2023-06-21 E. O. Kamenetskii

The recently proposed dynamical multiferroic effect describes the generation of magnetization from temporally varying electric polarization. Here, we show that the effect can lead to a magnetic field at moving ferroelectric domain walls,…

The paper investigates the behavior of 0 degree domain boundaries arising in uniaxial magnetic films with flexomagnetoelectric effect in a magnetic field. It is shown that at certain orientations of the magnetic field, it is possible to…

Materials Science · Physics 2023-10-04 Robert Vakhitov , Rostislav Solonetsky , Alina Ibragimova

Neutron scattering studies and measurements of the dielectric susceptibility and ferroelectric polarization P have been carried out in various magnetic fields H for single-crystal samples of the multiferroic system LiVCuO4 with quasi…

Strongly Correlated Electrons · Physics 2015-05-13 Yukio Yasui , Yutaka Naito , Kenji Sato , Taketo Moyoshi , Masatoshi Sato* , Kazuhisa Kakurai

The ground-state structural and electronic properties of ferroelectric BiFeO$_3$ are calculated using density functional theory within the local spin-density approximation and the LSDA+U method. The crystal structure is computed to be…

Materials Science · Physics 2007-05-23 J. B. Neaton , C. Ederer , U. V. Waghmare , N. A. Spaldin , K. M. Rabe

We demonstrate that two phenomena, the kinetic magneto-electric effect and the non-linear Hall effect, are universal to polar metals, as a consequence of their coexisting and contraindicated polarization and metallicity. We show that…

Materials Science · Physics 2023-09-19 Fabian Jäger , Nicola A. Spaldin , Sayantika Bhowal

We investigate the electronic structure and the ferroelectric properties of the recently discovered multiferroic ScFeO$_3$ by means of ab-initio calculations. The $3d$ manifold of Fe in the half-filled configuration naturally favors an…

Mutual control of the electricity and magnetism in terms of magnetic (H) and electric (E) fields, the magnetoelectric (ME) effect, offers versatile low power-consumption alternatives to current data storage, logic gate, and spintronic…

We propose a novel ferroelectric switchable altermagnetism effect, the reversal of ferroelectric polarization is coupled to the switching of altermagnetic spin splitting. We demonstrate the design principles for the ferroelectric…

The magnetoelectric coupling of electrons in a three-dimensional solid can be effectively described by axion electrodynamics. Here we report the discovery of the fractional magnetoelectric effect in chiral anomalous semimetals of the…

Mesoscale and Nanoscale Physics · Physics 2022-07-15 Huan-Wen Wang , Bo Fu , Jin-Yu Zou , Zi-Ang Hu , Shun-Qing Shen

We consider meta materials made from a two-dimensional dielectric rod-type photonic crystal. The magnetic response is studied within the recently developed homogenization theory and we in particular study the effects of topology and…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Niels Asger Mortensen , Sanshui Xiao , Didier Felbacq

The ferroelectric order and magnetic field induced effects observed in the spiral phase of MnWO4 are described theoretically. It is demonstrated explicitly that the Dzyaloshinskii-Moriya antisymmetric interactions contribute to the…

Strongly Correlated Electrons · Physics 2010-01-25 P. Toledano , B. Mettout , W. Schranz , G. Krexner

The honeycomb antiferromagnet Co4Nb2O9 is known to exhibit an interesting magnetoelectric effect that the electric polarization rotates at the twice speed in the opposite direction relative to the rotation of the external magnetic field…

Strongly Correlated Electrons · Physics 2020-04-22 Masashige Matsumoto , Mikito Koga

The in-plane correlation lengths and magnetic disorder of magnetic domains in a transition metal multilayer have been studied using neutron scattering techniques. A new theoretical framework is presented connecting the observed scattering…

Materials Science · Physics 2014-12-24 Sean Langridge , Joerg Schmalian , C. H. Marrows , D. T. Dekadjevi , B. J. Hickey
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