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.

Downloads

Опубліковано

2005-08-03

Як цитувати

(1)
Tanabe, Y.; Fujimaki, Y.; Kojima, K.; Uchida, S.; Onari, S.; Matsuo, T.; Azuma, S.; Hanamura, E. Direct Optical Excitation of Two and Three Magnons in a-Fe2O3. Fiz. Nizk. Temp. 2005, 31, 1024-1031.

Номер

Том 31 № 8-9 (2005)

Розділ

Статті

Завантаження

Дані завантаження ще не доступні.