Fermi surface study of α-(BEDT-TTF)2MHg(SCN)4 by cyclotron resonance measurement

K. Akioka, H. Ohta, S. Kimura, S. Okubo, K. Kanoda, M. Motokawa

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8 Citations (Scopus)

Abstract

We performed cyclotron resonance (CR) measurements of α-(BEDT-TTF)2MHg(SCN)4 (M = Rb, K) in the density-wave state. We applied the magnetic field perpendicular to the conducting ac-plane and we measured the angle dependence of the cyclotron resonance absorption. The observed four resonances in M = Rb salt showed 1/cos θ dependence, where the field was inclined by the angle θ from the direction perpendicular to the ac-plane. This dependence clearly shows that observed four resonances in M = Rb salt are CR's. The CR measurement of M = K salt was also performed and the results are also presented. To our surprise, obtained effective masses for M = K salt at 1.8 K were different from those obtained for M = Rb salt.

Original languageEnglish
Pages (from-to)311-314
Number of pages4
JournalPhysica B: Condensed Matter
Volume246-247
DOIs
Publication statusPublished - 1998 May 29
Externally publishedYes

Keywords

  • Cyclotron resonance
  • Effective mass
  • Fermi surface
  • Organic conductor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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