1. Pressure-induced superconductor-insulator transition in the spinel compound CuRh2S4
- Author
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Ito, Masakazu, Hori, Junya, Kurisaki, H., Okada, Hironari, Perez Kuroki, Ana Jagui, Ogita, Norio, Udagawa, Masayuki, Fujii, Hironobu, Nakamura, Fumihiko, Fujita, Toshizo, and Suzuki, Takashi
- Subjects
Superconductivity (cond-mat.supr-con) ,Condensed Matter - Strongly Correlated Electrons ,Strongly Correlated Electrons (cond-mat.str-el) ,stomatognathic system ,Condensed Matter - Superconductivity ,FOS: Physical sciences ,macromolecular substances - Abstract
We performed resistivity measurements in CuRh$_{2}$S$_{4}$ under quasi-hydrostatic pressure of up to 8.0 GPa, and found a pressure induced superconductor-insulator (SI) 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 CuRh$_{2}$S$_{4}$ disappears abruptly at a critical pressure $P_{\rm SI}$ between 5.0 and 5.6 GPa, when it becomes an insulator., Comment: 4 pages, 4 figures
- Published
- 2003