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

7 引用 (Scopus)


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.

ジャーナルJournal of the Physical Society of Japan
出版物ステータスPublished - 2005 5 1


ASJC Scopus subject areas

  • Physics and Astronomy(all)


Taniguchi, H., Miyashita, M., Uchiyama, K., Sato, R., Ishii, Y., Satoh, K., Môri, N., Hedo, M., & Uwatoko, Y. (2005). High-pressure study up to 9.9 GPa of organic Mott insulator, β′-(BEDT-TTF)2AuCl2. Journal of the Physical Society of Japan, 74(5), 1370-1373. https://doi.org/10.1143/JPSJ.74.1370