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arXiv · 0905.3289

Effects of pressure-induced phase transitions on superconductivity in the single crystal Fe1.02Se

V. G. Tissen·E. G. Ponyatovskii·M. V. Nefedova·A. N. Titov·V. V. Fedorenko
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Abstract

The temperature dependence of the ac susceptibility for single-crystalline Fe1.02Se has been measured at high pressures to 6.7 GPa. The superconducting transition temperature Tc displays a large increase from 7 K to 30 K in the two-phase region at 0.5 - 1 GPa. Further increase in pressure results in the decrease of Tc. The destruction of superconductivity near 7 GPa is presumably related to a structural transition from orthorhombic to hexagonal. .

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V. G. Tissen, E. G. Ponyatovskii, M. V. Nefedova, A. N. Titov, V. V. Fedorenko. 2009-05-20. Effects of pressure-induced phase transitions on superconductivity in the single crystal Fe1.02Se. https://doi.org/10.1103/physrevb.80.092507

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