Anomalous pressure dependence of the superconducting transition temperature in TlNi2Se2-xSx
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AbstractWe report the pressure dependence of the superconducting transition temperature T-c in TlNi2Se2-xSx detected via the ac susceptibility method. The pressure-temperature phase diagram constructed for TlNi2Se2, TlNi2S2, and TlNi2SeS exhibits two unexpected features: (a) a sudden collapse of the superconducting state at moderate pressure for all three compositions and (b) a dome-shaped pressure dependence of T-c for TlNi2SeS. These results point to the nontrivial role of S substitution and its subtle interplay with applied pressure, as well as interesting superconducting properties of the TlNi2Se2-xSx system.
All Author(s) ListGoh SK, Chang HC, Reiss P, Alireza PL, Cheung YW, Lau SY, Wang HD, Mao QH, Yang JH, Fang MH, Grosche FM, Sutherland ML
Journal namePhysical review B: Condensed matter and materials physics
Volume Number90
Issue Number20
PublisherAmerican Physical Society
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesPhysics; Physics, Condensed Matter

Last updated on 2020-01-08 at 02:40