Direct optical excitation of two and three magnons in α-Fe2O3 | Zendy

Yukito Tanabe | Zendy; Yoko Fujimaki | Zendy; Kazutoshi Kojima | Zendy; S. Uchida | Zendy; Seiichiro Onari | Zendy; Takashi Matsuo | Zendy; Syougo Azuma | Zendy; Eiichi Hanamura | Zendy

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Direct optical excitation of two and three magnons in α-Fe2O3

Author(s) -

Yukito Tanabe,

Yoko Fujimaki,

Kazutoshi Kojima,

S. Uchida,

Seiichiro Onari,

Takashi Matsuo,

Syougo Azuma,

Eiichi Hanamura

Publication year - 2005

Publication title -

low temperature physics

Language(s) - English

Resource type - Journals

eISSN - 1090-6517

pISSN - 1063-777X

DOI - 10.1063/1.2008139

Subject(s) - magnon , excitation , raman scattering , raman spectroscopy , spectral line , polarization (electrochemistry) , scattering , condensed matter physics , physics , materials science , atomic physics , molecular physics , optics , chemistry , quantum mechanics , ferromagnetism

Direct excitation of two and three magnons is observed in mid-infrared absorption and Raman scattering spectra of α-Fe2O3 crystals. These polarization characteristics and the spectra themselves are shown to be understood from group-theoretical point of view. The microscopic mechanism of three-magnon excitation is proposed in addition to that of well-known two-magnon excitation process.

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