Fermi surface study of organic conductors using a magneto-optical measurement under high magnetic fields

M. Kimata, H. Ohta, K. Koyama, M. Motokawa, R. Kondo, S. Kagoshima, H. Tanaka, M. Tokumoto, H. Kobayashi, A. Kobayashi

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Magneto-optical measurements have been performed in organic conductors β′′-(BEDT-TTF)2CsCd(SCN)4 and λ-(BETS)2FeCl4. Although the zero magnetic field ground state of β′′-(BEDT-TTF)2CsCd(SCN) 4is considered as the density wave state, periodic orbit resonances (POR's) attributed to quasi-one-dimensional (Q1D) and quasi-two-dimensional (Q2D) Fermi surfaces (FS's) have been observed above 6 T. The existence of these FS's are predicted by the band calculation based on room temperature lattice parameters. This result may suggest the destruction of the density wave state at 6 T, and the primal metallic state revives in the high field phase above 6 T. In the case of λ-(BETS)2FeCl4, large changes of the transmission intensity of electromagnetic waves around 10 T, which correspond to the insulator-metal transition, have been observed. However, no POR-like resonance has been observed. This may be due to the restriction of the observed frequency-field region.

本文言語English
論文番号084
ページ(範囲)359-362
ページ数4
ジャーナルJournal of Physics: Conference Series
51
1
DOI
出版ステータスPublished - 2006 12月 1
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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