High-frequency electromagnon in GdMnO 3

A. M. Shuvaev, F. Mayr, A. Loidl, A. A. Mukhin and A. Pimenov ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2011, vol. 80, issue 3, 351-354

Abstract: Results of far-infrared transmittance are reported for GdMnO 3 , a multiferroic perovskite manganite. The spectra allow to obtain position and intensity of the high-frequency electromagnon (~75 cm -1 ) in this material. We present a comparative analysis of the high- and low-frequency electromagnons across the phase diagram of GdMnO 3 . The traces of the electromagnon excitation can be detected even deeply in the paramagnetic state, which is attributed to magnetic fluctuations. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Date: 2011
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DOI: 10.1140/epjb/e2011-10691-3

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