Spin-stretching modes in anisotropic magnets: spin-wave excitations in the multiferroic Ba2CoGe2O7

We studied spin excitations in the magnetically ordered phase of the noncentrosymmetric Ba(2)CoGe(2)O(7) in high magnetic fields up to 33 T. In the electron spin resonance and far infrared absorption spectra we found several spin excitations beyond the two conventional magnon modes expected for such...

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Bibliographic Details

Published in:	Physical review letters Vol. 108; no. 25; p. 257203
Main Authors:	Penc, K, Romhányi, J, Rõõm, T, Nagel, U, Antal, A, Fehér, T, Jánossy, A, Engelkamp, H, Murakawa, H, Tokura, Y, Szaller, D, Bordács, S, Kézsmárki, I
Format:	Journal Article
Language:	English
Published:	United States 22.06.2012
ISSN:	1079-7114, 1079-7114
Online Access:	Get full text
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