3 0 O ct 2 00 6 Optical properties and magnetic field-induced phase transitions in the ferroelectric state of Ni 3 V 2 O

R. C. Rai, J. Cao, S. Brown, J. L. Musfeldt, ∗ D. Kasinathan, D. J. Singh, G. Lawes, N. Rogado, R. J. Cava, and X. Wei Department of Chemistry, University of Tennessee, Knoxville, TN 37996 Department of Physics, University of California Davis, Davis, CA 95616 Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge,TN 37831-6032 Department of Physics, Wayne State University, Detroit, MI 48201 DuPont Central Research and Development, Experimental Station, Wilmington, DE 19880-0328 Department of Chemistry and Princeton Materials Institute, Princeton University, Princeton, NJ 08544 National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310