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Creation of Skyrmions by Electric Field on Chiral‐Lattice Magnetic Insulators
Author(s) -
Mochizuki Masahito
Publication year - 2016
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201500180
Subject(s) - skyrmion , condensed matter physics , spins , electric field , materials science , magnetic field , multiferroics , vortex , joule heating , topological insulator , lattice (music) , insulator (electricity) , magnetoelectric effect , polarization density , physics , magnetization , optoelectronics , ferroelectricity , quantum mechanics , acoustics , dielectric , composite material , thermodynamics
It is theoretically proposed that magnetic skyrmions, nanometric spin vortices characterized by a quantized topological number, can be electrically created on a thin‐film specimen of chiral‐lattice magnetic insulator within a few nanoseconds by applying an electric field via an electrode tip taking advantage of coupling between noncollinear skyrmion spins and electric polarizations. This finding paves the way for utilizing multiferroic skyrmions as information carriers for low‐energy‐consuming magnetic storage devices without Joule‐heating energy losses.