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)

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.

元の言語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
発行部数5
DOI
出版物ステータスPublished - 2005 5
外部発表Yes

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superconductivity
insulators
salts
electrical resistivity
anvils
physical properties
transition temperature
anions
magnetic permeability
causes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

High-pressure study up to 9.9 GPa of organic Mott insulator, β′-(BEDT-TTF)2AuCl2. / Taniguchi, Hiromi; Miyashita, Masashi; Uchiyama, Kenichi; Sato, Ryosuke; Ishii, Yasuyuki; Satoh, Kazuhiko; Môri, Nobuo; Hedo, Masato; Uwatoko, Yoshiya.

:: Journal of the Physical Society of Japan, 巻 74, 番号 5, 05.2005, p. 1370-1373.

研究成果: Article

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, 巻. 74, 番号 5, pp. 1370-1373. https://doi.org/10.1143/JPSJ.74.1370
Taniguchi, Hiromi ; Miyashita, Masashi ; Uchiyama, Kenichi ; Sato, Ryosuke ; Ishii, Yasuyuki ; Satoh, Kazuhiko ; Môri, Nobuo ; Hedo, Masato ; Uwatoko, Yoshiya. / High-pressure study up to 9.9 GPa of organic Mott insulator, β′-(BEDT-TTF)2AuCl2. :: Journal of the Physical Society of Japan. 2005 ; 巻 74, 番号 5. pp. 1370-1373.
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abstract = "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.",
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AU - Taniguchi, Hiromi

AU - Miyashita, Masashi

AU - Uchiyama, Kenichi

AU - Sato, Ryosuke

AU - Ishii, Yasuyuki

AU - Satoh, Kazuhiko

AU - Môri, Nobuo

AU - Hedo, Masato

AU - Uwatoko, Yoshiya

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N2 - 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.

AB - 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.

KW - Crystal structure

KW - Cubic anvil press

KW - High pressure

KW - Organic superconductor

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