High-pressure study up to 9.9 GPa of organic Mott insulator, β′-(BEDT-TTF)2AuCl2

Hiromi Taniguchi, Masashi Miyashita, Kenichi Uchiyama, Ryosuke Sato, Yasuyuki Ishii, Kazuhiko Satoh, Nobuo Môri, Masato Hedo, Yoshiya Uwatoko

研究成果: Article査読

7 被引用数 (Scopus)

抄録

We have investigated the resistivity of an organic Mott insulator, β′-(BEDT-TTF)2AuCl2, under extremely high pressures of up to 9.9 GPa, using the cubic anvil press, motivated by the fact that a related material, β′-(BEDT-TTF)2ICl2, shows the highest transition-temperature superconductivity among organics at 8.2 GPa. Through characterization by resistivity and susceptibility measurements at ambient pressure, we have confirmed that these two salts have common physical properties. Nevertheless, β′-(BEDT-TTF)2AuCl2 does not show superconductivity but remains semiconducting up to 9.9 GPa. We discuss the origin of these contrasting behaviors and suggest the cause to be the difference in anion size between the two salts.

本文言語English
ページ(範囲)1370-1373
ページ数4
ジャーナルJournal of the Physical Society of Japan
74
5
DOI
出版ステータスPublished - 2005 5 1
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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