Fine Structure of In-Plane Angular Effect of Magnetoresistance of (DMET)2I3

Harukazu Yoshino, Keizo Murata, Takahiko Sasaki, Kazuya Saito, Hiroyuki Nishikawa, Koichi Kikuchi, Isao Ikemoto, Keiji Kobayashi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The magnetoresistance of a quasi-one-dimensional (Q1D) organic superconductor, (DMET)2I3, where DMET is dimethyI(ethylenedithio)diselenadithiafulvalene, was measured up to 30T at 1.5K. An electrical current was applied perpendicular to the conducting ab plane and a magnetic field is rotated in the ab plane. An anomalous hump of the magnetoresistance reported previously was observed at 7T between −15° and 15° from the most conducting b-axis. It was found that the hump has a fine structure at higher magnetic fields with two additional sharp local minima at about ±3°. Partial disappearance of the Q1D Fermi surface at a critical angle, where a kind of quantum limit is realized, is proposed to interpret the fine structure.

Original languageEnglish
Pages (from-to)2248-2251
Number of pages4
Journaljournal of the physical society of japan
Volume66
Issue number8
DOIs
Publication statusPublished - 1997 Jan 1

Keywords

  • (DMET)I
  • magnetoresistance
  • organic superconductor
  • quantum limit
  • quasi-one-dimensional

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Yoshino, H., Murata, K., Sasaki, T., Saito, K., Nishikawa, H., Kikuchi, K., Ikemoto, I., & Kobayashi, K. (1997). Fine Structure of In-Plane Angular Effect of Magnetoresistance of (DMET)2I3. journal of the physical society of japan, 66(8), 2248-2251. https://doi.org/10.1143/JPSJ.66.2248