title: Magneto-optical studies of low-dimensional organic conductors.
abstract: Our periodic orbit resonance (POR) results on quasi-two-dimensional (q2D), highly anisotropic q2D and quasi-one-dimensional (q1D) organic conductors are reviewed together with our rotational cavity magneto-optical measurement system. Higher order POR up to seventh order has been observed in the q2D system (BEDT-TTF)2Br(DIA), and the experimental conditions to observe POR and the cyclotron resonance (CR) are discussed. Highly anisotropic q2D Fermi surface (FS) in β″-(BEDT-TTF)(TCNQ), which was considered to have q1D FS previously, is proposed by our POR measurements, and the possible interpretations of other experimental results of β″-(BEDT-TTF)(TCNQ) are discussed assuming the highly anisotropic q2D FS. Finally, detailed q1D FS of (DMET)2I3, obtained from our POR results, is discussed in connection with the typical q1D system (TMTSF)2ClO4.
authors.affiliation: Molecular Photoscience Research Center, Kobe University, 1-1 Rokkodai-cho, Nada, Kobe 657-8501, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Ohta
authors.affiliation: Graduate School of Science and Technology, Kobe University, 1-1 Rokkodai-cho, Nada, Kobe 657-8501, Japan.
authors.forename: Kimata
authors.initials: K
authors.lastname: Motoi
authors.affiliation: Institute for Materials Research, Tohoku University, Katahira, Sendai 980-8577, Japan.
authors.forename: Yugo
authors.initials: Y
authors.lastname: Oshima
keywords: Fermi surface; low-dimensional organic conductors; magneto-optical measurements; periodic orbit resonance