Symmetry change in the angular dependence of magnetoresistance of the two-dimensional organic conductor, τ-(EDO-S, S-DMEDT-TTF)2(AuBr2)(AuBr2)y, (y ∼ 0.75)

Harukazu Yoshino, Koji Iimura, Takahiko Sasaki, Akihiro Oda, G. C. Papavassiliou, Keizo Murata

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Angular dependence of magnetoresistivity, ρc(φ). of a quasi-two-dimensional organic conductor, τ-(EDO-S, S-DMEDT-TTF)2(AuBr2)(AuBr2)y, (y ∼ 0.75). where EDO-S, S-DMEDT-TTF is ethylenedioxy-S, S-dimethylethylenedithio-tetrathiafulvalene, was measured for the magnetic field and the electrical current parallel and perpendicular to the most conducting ab plane. The magnetoresistance is negative in the semiconducting range below about 50 K. It was found that the period of ρc(φ) changes from 90° at 5.0 T to 180° at 0.5 T and the principal axis of ρc(φ) at 0.5 T depends on the field-orientation at 5.0 T. The change in the period and the principal axis of ρc(φ) is discussed in terms of formation and reorientation of magnetic domains.

Original languageEnglish
Pages (from-to)177-180
Number of pages4
Journaljournal of the physical society of japan
Volume68
Issue number1
DOIs
Publication statusPublished - 1999 Jan

Keywords

  • Ferromagnetism
  • Magnetic domain
  • Negative magnetoresistance
  • Organic conductor

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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