Document Detail


Magnetic control of crystal chirality and the existence of a large magneto-optical dichroism effect in CuB2O4.
MedLine Citation:
PMID:  18851331     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The possibility of a magnetic field controlling the chirality of matter has been debated for a long time. Here, we report the successful induction of chirality in the noncentrosymmetric canted antiferromagnet, CuB2O4, by application of a low intensity static magnetic field. The chirality is reversed by a 90 degrees rotation of the direction of the magnetic field. The induction of chirality by a magnetic field gives rise to a gigantic enhancement of magnetochiral dichroism in this material. The ability to switch handedness in combination with this large magnetochiral optical effect allows us to design new optical devices such as a magnetically controllable isolator.
Authors:
M Saito; K Ishikawa; K Taniguchi; T Arima
Publication Detail:
Type:  Journal Article     Date:  2008-09-12
Journal Detail:
Title:  Physical review letters     Volume:  101     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-10-14     Completed Date:  2008-12-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  117402     Citation Subset:  -    
Affiliation:
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.
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