Document Detail


Exchange bias driven by the Dzyaloshinskii-Moriya interaction and ferroelectric polarization at G-type antiferromagnetic perovskite interfaces.
MedLine Citation:
PMID:  19792455     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Exchange bias is usually rationalized invoking spin pinning effects caused by uncompensated antiferromagnetic interfaces. However, for compensated antiferromagnets other extrinsic factors, such as interface roughness or spin canting, have to be considered to produce a small uncompensation. As an alternative, here we propose two (related) possible mechanisms, driven by the intrinsic Dzyaloshinskii-Moriya interaction and ferroelectric polarization, for the explanation of exchange bias effects in perovskites with compensated G-type antiferromagnetism. One of the mechanisms is only active when a multiferroic material is involved and it is controllable by electric fields.
Authors:
Shuai Dong; Kunihiko Yamauchi; Seiji Yunoki; Rong Yu; Shuhua Liang; Adriana Moreo; J-M Liu; Silvia Picozzi; Elbio Dagotto
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Publication Detail:
Type:  Journal Article     Date:  2009-09-14
Journal Detail:
Title:  Physical review letters     Volume:  103     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-10-01     Completed Date:  2009-11-03     Revised Date:  2014-02-19    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  127201     Citation Subset:  -    
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Descriptor/Qualifier:
Grant Support
ID/Acronym/Agency:
203523//Biotechnology and Biological Sciences Research Council

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