Ferroelectricity in spiral magnets.

By M. Mostovoy. Physical Review Letters, 2005

974 citations recorded by the source corpus.

It was recently observed that the ferroelectrics showing the strongest sensitivity to an applied magnetic field are spiral magnets. We present a phenomenological theory of inhomogeneous ferroelectric magnets, which describes their thermodynamics and magnetic field behavior, e.g., dielectric susceptibility anomalies at magnetic transitions and sudden flops of electric polarization in an applied magnetic field. We show that electric polarization can also be induced at domain walls and that magnetic vortices carry electric charge.

Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/4289046e8d77b39c58c90890c58e1241c004da9a

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Citations in the corpus

Oxides, Oxides, and More Oxides: High-κ Oxides, Ferroelectrics, Ferromagnetics, and Multiferroics (2009, background): “970 As a result, ferroelectric order in RMn 2 O 5 is sensitive to an applied magnetic field.”
Dynamical Multiferroicity (2016, background): “Specifically in TbMnO3 with a magnetic field applied along b, the spin cycloid lies in the a-b plane.”
Introduction to magnetoelectric coupling and multiferroic films (2011, background): “Mostovoy proposed another phenomenological model for multiferroic ordering in cycloidal spin spirals based on the symmetry of the magnetic structures [103].”
Domain wall nanoelectronics (2012, background): “Magnetic spin spirals can by themselves cause ferroelectricity: indeed, a spin spiral arrangement is known to cause weak ferroelectricity in some multiferroics (Newnham et al., 1978; Mostovoy, 2006; Cheong and Mostovoy, 2007).”
Spiral Magnets as Magnetoelectrics (2007, methodology): “Harris and colleagues (30, 51) and Mostovy (31), using Landau theory, have also reported phenomenological treatments.”
Magnetoelectric resonance with electromagnons in a perovskite helimagnet (2011, methodology): “The origin of this ferroelectricity is successfully explained by the spin-current model, or equivalently the inverse effect of the Dzyaloshinskii–Moriya interactio”