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

Автор(и)

  • Y. Tanabe Department of Applied Physics, University of Tokyo, 7–3–1 Hongo, Tokyo 113–8656, Japan
  • Y. Fujimaki Department of Physics, University of Tokyo, 7–3–1 Hongo, Tokyo 113–8656, Japan
  • K. Kojima Department of Physics, University of Tokyo, 7–3–1 Hongo, Tokyo 113–8656, Japan
  • S. Uchida Department of Physics, University of Tokyo, 7–3–1 Hongo, Tokyo 113–8656, Japan
  • S. Onari Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 304–8573, Japan
  • T. Matsuo Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 304–8573, Japan
  • S. Azuma Chitose Institute of Science and Technology and Japan Science and Technology Agency Chitose, Hokkaido 066-8655, Japan
  • E. Hanamura Chitose Institute of Science and Technology and Japan Science and Technology Agency Chitose, Hokkaido 066-8655, Japan

Ключові слова:

PACS: 75.30.Ds, 78.30.–j, 75.50.Ee

Анотація

Direct excitation of two and three magnons is observed in midinfrared absorption and Raman scattering spectra of a-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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Опубліковано

2005-08-03

Як цитувати

(1)
Y. Tanabe, Y. Fujimaki, K. Kojima, S. Uchida, S. Onari, T. Matsuo, S. Azuma, and E. Hanamura, Direct optical excitation of two and three magnons in a-Fe2O3, Low Temp. Phys. 31, (2005) [Fiz. Nizk. Temp. 31, 1024-1031, (2005)].

Номер

Том 31 № 8-9 (2005)

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