Magneto-optical studies of low-dimensional organic conductors

• Published in: Science and technology of advanced materials Vol. 10; no. 2; p. 024310
• Main Authors: Ohta, Hitoshi, Motoi, Kimata, Oshima, Yugo
• Format: Journal Article
• Language: English
• Published: United States Taylor & Francis 01.04.2009; IOP Publishing; Taylor & Francis Group
• Subjects: Fermi surface; low-dimensional organic conductors; magneto-optical measurements; periodic orbit resonance; Topical Review; Fermi surface; low-dimensional organic conductors; magneto-optical measurements; periodic orbit resonance
• ISSN: 1468-6996; 1878-5514
• DOI: 10.1088/1468-6996/10/2/024310

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) 2 Br(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) 2 I 3 , obtained from our POR results, is discussed in connection with the typical q1D system (TMTSF) 2 ClO 4 .