Magnetoelectric transfer of a domain pattern

Abstract

The utility of ferroic materials is determined by the formation of domains and their poling behavior under externally applied fields. For multiferroics, which exhibit several types of ferroic order at once, it is also relevant how the domains of the coexisting ferroic states couple and what kind of functionality this might involve. In this work, we demonstrate the reversible transfer of a domain pattern between magnetization and electric-polarization space in the multiferroic Dy 0.7 Tb 0.3 FeO 3 . A magnetic field transfers a ferromagnetic domain pattern into an identical ferroelectric domain pattern while erasing it at its magnetic origin. Reverse transfer completes the cycle. To assess the generality of our experiment, we elaborate on its conceptual origin and aspects of application.

Multiferroics: different routes to magnetoelectric coupling

“…The replacement of Gd by a mixture of Ising-like Tb and Dy ions, which does not change the symmetry of the rare earth spin ordering, slows the R-DWs and allows for the electric field control of magnetization 9,10 . The patterns of ferromagnetic and ferroelectric domain walls under applied electric and magnetic fields have been recently imaged optically 71 .…”

Room‐Temperature Magnetoelectric Coupling in Atomically Thin ε‐Fe2O3

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coupling in multiferroics has attracted considerable research interests due to the wide range of applications in high-density information storages and low-energyconsumption spintronic devices. [7][8][9][10][11][12][13][14] Notably, the manipulation of magnetism by electric field has shown the transformative potential in the next-generation logic devices. [15][16][17][18][19][20][21][22][23][24] Nevertheless, the magnetoelectric coupling is extremely weak in traditional type-I multiferroics because of the mutually exclusive origins between ferroelectricity and ferromagnetism.

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