Phonon DOS of filled skutterudite, Ba0.1CoSb3

T. Kajitani, Y. Ono, Y. Miyazaki, M. Sluiter, L. Chen, T. Goto, Y. Kawazoe

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Phonon DOS of Ba-filled skutterudite, Ba0.1CoSb3, is observed at the energy resolution of 0.1meV(FWHM) by means of cold neutron incoherent scattering technique. 5meV shoulder and three new peaks appear at about 12, 15 and 18meV relative to the unfilled sample. Three peaks are interpreted as Einstein-type local excitation modes of Ba-atoms based on the all-electron first-principle band calculation. But the origin of the 5meV shoulder is not understood from present calculation. Structural relaxation of the filled skutterudite is performed during the calculation. The space symmetry of the relaxed lattice is consistent with the Pm-3-type and the cobalt and antimony positions appreciably shift by the barium introduction.

本文言語English
ホスト出版物のタイトルProceedings ICT 2003 - 22nd International Conference on Thermoelectrics
出版社Institute of Electrical and Electronics Engineers Inc.
ページ81-84
ページ数4
ISBN(電子版)078038301X
DOI
出版ステータスPublished - 2003
イベント22nd International Conference on Thermoelectrics, ICT 2003 - La Grande Motte, France
継続期間: 2003 8月 172003 8月 21

出版物シリーズ

名前International Conference on Thermoelectrics, ICT, Proceedings
2003-January

Other

Other22nd International Conference on Thermoelectrics, ICT 2003
国/地域France
CityLa Grande Motte
Period03/8/1703/8/21

ASJC Scopus subject areas

  • 凝縮系物理学
  • 電子工学および電気工学

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