Universität zu Köln

Hoffmann, T., Thielen, P., Becker, P., Bohaty, L. and Fiebig, M. (2011). Time-resolved imaging of magnetoelectric switching in multiferroic MnWO4. Phys. Rev. B, 84 (18). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1098-0121

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Abstract

We show that the electric-field-induced reversal of the magnetic order parameter in multiferroic MnWO4 occurs on the time scale of milliseconds. Throughout the switching process the magnetic order and the magnetically induced electric polarization remain rigidly coupled. The temporal progression of the domain structure was imaged with nanosecond resolution by an electrical-pump-optical-probe technique using optical second harmonic generation. The nonequilibrium domain pattern significantly differs from the one during quasistatic domain reversal. A qualitative model gives an estimate of why the magnetoelectric order-parameter reversal in the magnetically induced ferroelectrics is not inherently ultrafast.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Hoffmann, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Thielen, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Becker, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bohaty, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fiebig, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-485528
DOI:	10.1103/PhysRevB.84.184404
Journal or Publication Title:	Phys. Rev. B
Volume:	84
Number:	18
Date:	2011
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1098-0121
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language POLARIZATION Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48552