Suppression of nonmagnetic insulating state by application of pressure in mineral tetrahedrite Cu12Sb4S13

Shunsaku Kitagawa, Taishi Sekiya, Shingo Araki, Tatsuo C. Kobayashi, Kenji Ishida, Takashi Kambe, Takumi Kimura, Naoki Nishimoto, Kazutaka Kudo, Minoru Nohara

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16 Citations (Scopus)

Abstract

The mineral tetrahedrite Cu12Sb4S13 exhibits a first-order metal-insulator transition (MIT) at TMI = 85K and ambient pressure. We measured the 63Cu-NMR at ambient pressure and the resistivity and magnetic susceptibility at high pressures. 63Cu-NMR results indicate a nonmagnetic insulating ground state in this compound. The MIT is monotonically suppressed by pressure and disappears at ~1.0 GPa. Two other anomalies are observed in the resistivity measurements, and the pressure-temperature phase diagram of Cu12Sb4S13 is constructed.

Original languageEnglish
Article number093701
Journaljournal of the physical society of japan
Volume84
Issue number9
DOIs
Publication statusPublished - Sep 15 2015

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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