Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 80, Issue 5, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.80.052001
Keywords
magnetoelectric effect; multiferroic; ferroelectricity; frustrated magnet; helimagnet; cycloid; exchange striction; hybridization; domain wall; phase transition; polarized neutron scattering
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) [19052001]
- FIRST program
- Grants-in-Aid for Scientific Research [19052001, 19052007] Funding Source: KAKEN
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The interplay between magnetism and electricity in matter has become a central issue of condensed-matter physics. This review focuses on the ferroelectricity induced by magnetic order mostly in frustrated magnets, which is nowadays referred to as magneto-electric (ME) multiferroic, or often only as multiferroic. Some distinct types of microscopic origins relevant to the spin-driven ferroelectricity are discussed in detail. Then one sees that the frustration-based spin-driven ferroelectrics can exhibit nonlinear and giant ME responses of phase-transition type and of domain-control type, in contrast to the conventional magnetoelectrics hosting linear ME effects.
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