High-Frequency Electromagnon in GdMnO3

Details High-Frequency Electromagnon in GdMnO3 High-Frequency Electromagnon in GdMnO3

2010-08-12

arxiv.org/abs/1008.2064v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures

Scientific paper

We present the results of transmittance experiments on GdMnO3 multiferroic manganite in the far infrared frequency range. The spectra allow to obtain the positions and the intensity of the high frequency electromagnon (~ 75 cm-1) in this compound. We present the comparative analysis of the high and low frequency electromagnons across the phase diagram of GdMnO3. The traces of the electromagnon excitation can be detected even at room temperature, i.e. deeply in the paramagnetic state.

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