The superstructure of the organic superconductor β(BEDT-TTF) 2I3 under pressure

Yoshio Nogami, Seiichi Kagoshima, Hiroyuki Anzai, Madoka Tokumoto, Nobuo Môri, Nobumori Kinoshita, Gunzi Saito

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

An X-ray diffraction study is made on the incommensurate superstructure in the organic superconductor β-(BEDT-TTF)2I3 under pressure. The onset temperature of the superstructure decreases from 175 K to 150 K with increasing pressure from 1 bar to about 400 bar, above which no superstructure is found. The wave vector specifying the superstructure is found to change in the range between 100 K and ∼120 K. This wave-vector change slows down at low pressures. At ambient pressure it takes more than 30 hr to complete the change. This wave-vector change is found to bring about a new "2 K superconducting state" in the title compound.

Original languageEnglish
Pages (from-to)259-265
Number of pages7
JournalJournal of the Physical Society of Japan
Volume59
Issue number1
Publication statusPublished - Jan 1990
Externally publishedYes

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organic superconductors
low pressure
diffraction
x rays
temperature

Keywords

  • BEDT-TTF
  • Incommensurate superstructure
  • Organic superconductor
  • Superstructure under pressure

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Nogami, Y., Kagoshima, S., Anzai, H., Tokumoto, M., Môri, N., Kinoshita, N., & Saito, G. (1990). The superstructure of the organic superconductor β(BEDT-TTF) 2I3 under pressure. Journal of the Physical Society of Japan, 59(1), 259-265.

The superstructure of the organic superconductor β(BEDT-TTF) 2I3 under pressure. / Nogami, Yoshio; Kagoshima, Seiichi; Anzai, Hiroyuki; Tokumoto, Madoka; Môri, Nobuo; Kinoshita, Nobumori; Saito, Gunzi.

In: Journal of the Physical Society of Japan, Vol. 59, No. 1, 01.1990, p. 259-265.

Research output: Contribution to journalArticle

Nogami, Y, Kagoshima, S, Anzai, H, Tokumoto, M, Môri, N, Kinoshita, N & Saito, G 1990, 'The superstructure of the organic superconductor β(BEDT-TTF) 2I3 under pressure', Journal of the Physical Society of Japan, vol. 59, no. 1, pp. 259-265.
Nogami Y, Kagoshima S, Anzai H, Tokumoto M, Môri N, Kinoshita N et al. The superstructure of the organic superconductor β(BEDT-TTF) 2I3 under pressure. Journal of the Physical Society of Japan. 1990 Jan;59(1):259-265.
Nogami, Yoshio ; Kagoshima, Seiichi ; Anzai, Hiroyuki ; Tokumoto, Madoka ; Môri, Nobuo ; Kinoshita, Nobumori ; Saito, Gunzi. / The superstructure of the organic superconductor β(BEDT-TTF) 2I3 under pressure. In: Journal of the Physical Society of Japan. 1990 ; Vol. 59, No. 1. pp. 259-265.
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