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- W2949900287 abstract "We review terahertz experiments on magnetoelectric excitations in rare earth multiferroic manganites RMnO3 with R = Gd, Tb, Dy, (Eu:Y). In all these compounds characteristic excitations of the novel type, called electromagnons, have been observed for frequencies 10 cm−1<ν<30 cm−1. From the spectroscopic point of view electromagnons are responsible for the magnetoelectric effects in RMnO3 and, contrary to magnons, are excited only by electric components of the electromagnetic wave. In all compositions the electromagnons appear as a broad Debye-like contribution in the sinusoidally modulated antiferromagnetic phase and transform to well-defined excitations as the magnetic structure becomes spiral. At the lowest temperatures the fine structure of electromagnons is observed, reflecting the increasing complexity of the magnetic structure." @default.
- W2949900287 created "2019-06-27" @default.
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- W2949900287 date "2009-04-07" @default.
- W2949900287 modified "2023-09-23" @default.
- W2949900287 title "ChemInform Abstract: Electromagnons in Multiferroic Manganites" @default.
- W2949900287 cites W1965550722 @default.
- W2949900287 doi "https://doi.org/10.1002/chin.200914218" @default.
- W2949900287 hasPublicationYear "2009" @default.
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