Dynamical magnetoelectric effects associated with ferroelectric domain walls

Prosandeev, S. A.; Malashevich, Andrei; Raevski, I. P.; Bellaïche, L.

doi:10.1103/physrevb.91.100101

Cited by 7 publications

(4 citation statements)

References 29 publications

(26 reference statements)

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“…A general theory of dynamics in nano-objects, as well as a striking dynamical coupling between the nanostripes and sinusoidal-in-time strain deformations, were reported by Zhang, Herchig, and Ponomareva (2011). Other computations about dynamics predicted the occurrence of pulses of magnetization when (nonmagnetic) PbðZr 0.4 Ti 0.6 ÞO 3 ultrathin films undergo sudden changes in the morphology of their nanodomain structure as a response to an ac gigahertz electric field (Prosandeev et al, 2015) [similar magnetoelectric effects were predicted five years later by Juraschek et al (2019)]. A simple equation relating the time derivative of the electric toroidal moment and the product between the electric polarization and its time derivative was developed to explain these pulses of magnetization in moving ferroelectric domain walls.…”

Section: Dynamical Propertiesmentioning

confidence: 80%

Topological phases in polar oxide nanostructures

et al. 2023

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The past decade has witnessed dramatic progress related to various aspects of emergent topological polar textures in oxide nanostructures displaying vortices, skyrmions, merons, hopfions, dipolar waves, or labyrinthine domains, among others. For a long time, these nontrivial structures (the electric counterparts of the exotic spin textures) were not expected due to the high energy cost associated with the dipolar anisotropy: the smooth and continuous evolution of the local polarization to produce

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Section: Dynamical Propertiesmentioning

confidence: 80%

Topological phases in polar oxide nanostructures

et al. 2023

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“…Studying other types of dynamical magnetoelectric effects, such as those predicted in Ref. [35], can also be of great technological and fundamental interest [35].…”

Section: Discussionmentioning

confidence: 99%

Room-temperature paramagnetoelectric effect in magnetoelectric multiferroics Pb(Fe1/2Nb1/2)O3 and its solid solution with PbTiO3

et al. 2016

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We have observed the magnetoelectric response at room temperature and above in high-resistive ceramics made of multiferroic Pb(Fe1/2Nb1/2)O3 (PFN) and PFN-based solid solution 0.91PFN -0.09PbTiO3 (PFNPT). The value of the paramagnetoelectric (PME) coefficient shows a pronounced maximum near the ferroelectric-to-paraelectric phase transition temperature, TC, and then decreases sharply to zero for T > TC. The maximal PME coefficient in PFN is about 410 -18 s/A. The theoretical description of the PME effect, within the framework of a Landau theory of phase transitions allowing for realistic temperature dependences of spontaneous polarization, dielectric and magnetic susceptibilities, qualitatively reproduces well the temperature dependence of the PME coefficient. In particular, the Landau theory predicts the significant increase of the PME effect at low temperatures and near the temperature of the paraelectric-toferroelectric phase transition, since the PME coefficient is equal to the product of the spontaneous polarization, dielectric permittivity, square of magnetic susceptibility and the coefficient quantifying the strength of the biquadratic magnetoelectric coupling.

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“…Consequently, Ref. [123] predicted that pulses of magnetization can occur in nominally nonmagnetic systems, if they adopt nanoscale ferroelectric domains that are moving under the application of a GHz electric field. These striking magnetoelectric effects are, in fact, consistent with those observed and interpreted starting in the 1980's in Refs.…”

Section: Some "Exotic" Energetic Couplingsmentioning

confidence: 99%

“…Note also that, as indicated in ref. [124], time‐dependent electrical toroidal moment has the dimension of a magnetic moment and can also be expressed as a product of the polarization and its time derivative. Consequently, ref.…”

Section: Some Recently Discovered Energetic Couplingsmentioning

confidence: 99%

Energetic Couplings in Ferroics

Zhao

Chen

Prosandeev

et al. 2021

Adv Elect Materials

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Ferroics include diverse degrees of freedom (such as structural distortions and magnetic moments) among which cross couplings occur, rendering a large variety of interesting phenomena. Determining such couplings, based on symmetry analysis, is not only important to interpret observed phenomena but can also result in novel predictions to be then experimentally checked. Often, such energetic couplings are difficult to construct without a deep knowledge of group theoretical symmetry principles. In the present review, a crash course towards the derivation of energetic couplings, without using much the group theoretical language, is provided. Rather, the present approach relies on a graphical technique and suitable symbolic language, which naturally yields some known couplings (resulting in, e.g., spin/dipole canting, magnetically driven polarization and antipolar/antiferroelectric states). This review also reports and discusses other symmetry-allowed energetic terms, including some leading to the occurrence of an electric polarization in a variety of materials, and "exotic" ones that generate complex phases and phenomena in, e.g., nanostructures and heterostructures.

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Dynamical magnetoelectric effects associated with ferroelectric domain walls

Cited by 7 publications

References 29 publications

Topological phases in polar oxide nanostructures

Topological phases in polar oxide nanostructures

Room-temperature paramagnetoelectric effect in magnetoelectric multiferroics Pb(Fe1/2Nb1/2)O3 and its solid solution with PbTiO3

Energetic Couplings in Ferroics

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