High-field phase transitions and Fermi surfaces in the organic conductor α-(BEDT-TTF)2KHg(SCN)4: Influence of the magnetic breakdown on evaluation of the effective mass and the scattering time

T. Sasaki, W. Biberacher, T. Fukase

研究成果: Article査読

5 被引用数 (Scopus)

抄録

The change of the de Haas-van Alphen (dHvA) oscillation between the low-field spin-density-wave (SDW) phase and the high-field (H ≥ 23 T) metallic phase of the organic conductor α-(BEDT-TTF)2KHg(SCN)4 is explained in terms of a model of the magnetic breakdown (MB) and a reconstructed Fermi surface by SDW. On the reconstructed Fermi surface, the scattering time obtained by fitting the standard Lifshitz-Kosevich formulation to the dHvA oscillations is affected by the MB giving the additional field-dependent effect. Furthermore, the evaluation of the effective mass needs to consider the additional temperature-dependent factor being due to the MB gap which may change intrinsically and/or thermally with temperature.

本文言語English
ページ(範囲)303-306
ページ数4
ジャーナルPhysica B: Condensed Matter
246-247
DOI
出版ステータスPublished - 1998 5 29

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

フィンガープリント

「High-field phase transitions and Fermi surfaces in the organic conductor α-(BEDT-TTF)<sub>2</sub>KHg(SCN)<sub>4</sub>: Influence of the magnetic breakdown on evaluation of the effective mass and the scattering time」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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