High-frequency electromagnon in GdMn[O.sub.3]

High-frequency electromagnon in GdMn[O.sub.3]

Results of far-infrared transmittance are reported for GdMn[O.sub.3], a multiferroic perovskite manganite. The spectra allow to obtain position and intensity of the high-frequency electromagnon (~75 [cm.sup.-1]) in this material. We present a comparative analysis of the high- and low-frequency elect...

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Veröffentlicht in:The European physical journal. B, Condensed matter physics Condensed matter physics, 2011-04, Vol.80 (3), p.351
Hauptverfasser: Shuvaev, A.M, Mayr, F, Loidl, A, Mukhin, A.A, Pimenov, A
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Magnetic fields
Magnetic properties
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Zusammenfassung:Results of far-infrared transmittance are reported for GdMn[O.sub.3], a multiferroic perovskite manganite. The spectra allow to obtain position and intensity of the high-frequency electromagnon (~75 [cm.sup.-1]) in this material. We present a comparative analysis of the high- and low-frequency electromagnons across the phase diagram of GdMn[O.sub.3]. The traces of the electromagnon excitation can be detected even deeply in the paramagnetic state, which is attributed to magnetic fluctuations.
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/e2011-10691-3