title: Pressure-induced superconductor-insulator transition in the spinel compound CuRh2S4.
abstract: We performed resistivity measurements in CuRh2S4 under quasihydrostatic pressure of up to 8.0 GPa, and found a pressure-induced superconductor-insulator transition. Initially, with increasing pressure, the superconducting transition temperature T(c) increases from 4.7 K at ambient pressure to 6.4 K at 4.0 GPa, but decreases at higher pressures. With further compression, superconductivity in CuRh2S4 disappears abruptly at a critical pressure P(SI) between 5.0 and 5.6 GPa, when it becomes an insulator.
authors.affiliation: Department of Quantum Matter, ADSM, Hiroshima University, Higashi-Hiroshima 739-8530, Japan. showa@hiroshima-u.ac.jp
authors.forename: M
authors.initials: M
authors.lastname: Ito
authors.forename: J
authors.initials: J
authors.lastname: Hori
authors.forename: H
authors.initials: H
authors.lastname: Kurisaki
authors.forename: H
authors.initials: H
authors.lastname: Okada
authors.forename: A J
authors.initials: AJ
authors.lastname: Perez Kuroki
authors.forename: N
authors.initials: N
authors.lastname: Ogita
authors.forename: M
authors.initials: M
authors.lastname: Udagawa
authors.forename: H
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authors.lastname: Fujii
authors.forename: F
authors.initials: F
authors.lastname: Nakamura
authors.forename: T
authors.initials: T
authors.lastname: Fujita
authors.forename: T
authors.initials: T
authors.lastname: Suzuki