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SECTION K2: MULTIFERROICS AND APPLICATIONS

SHG Microscope Observations of Domain Structures of Multiferroic BiFeO3 Single Crystal

, , , &
Pages 59-62 | Received 23 Aug 2009, Published online: 20 Jan 2011
 

Abstract

Temperature dependences of optical second harmonic generation (SHG) and light transmissivity are measured on a single crystal of multiferroic BiFeO3. SHG intensity exhibits a peak around the Neel temperature. The origin of this anomalous behavior could be attributed to rearrangements of ferroelectric micro-domain structures caused by spin-lattice coupling enhanced by ferroelectric order parameter.

Acknowledgments

This work is partly supported by “Academic Frontier” Project of MEXT, the grants-in-aid of scientific research (B) of MEXT, Japan and the special grants (B) of Waseda University. R.H. thanks the French Agence Nationale de la Recherche (PROPER) for financial support.

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