Pressure effects on superconductivity and magnetism in FeSe 1-xTex

Chien Lung Huang; Chih Chieh Chou; Kuo Feng Tseng; Yi Lin Huang; Fong Chi Hsu; Kuo Wei Yeh; Mau Kuen Wu; Hung Duen Yang

doi:10.1143/JPSJ.78.084710

Pressure effects on superconductivity and magnetism in FeSe _1-xTe_x

Chien Lung Huang, Chih Chieh Chou, Kuo Feng Tseng, Yi Lin Huang, Fong Chi Hsu, Kuo Wei Yeh, Mau Kuen Wu, Hung Duen Yang

Department of Physics

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

The pressure (P) dependence of AC susceptibility and electrical resistivity of FeSe _0.88 and FeSe _0.5Te _0.5 has been studied. The superconducting transition temperature (T _c) of FeSe _0.5Te _0.5 is found to be more sensitive to P than it is in FeSe _0.88, which is believed to arise from the strongly distorted structure. The enhancement of T _c by P is mainly attributed to an increase of density of states, which implies that the superconductivity in FeSe _1-xTe _x favors pairing mechanism in the context of strong-coupling BCS theory.

Original language	English
Article number	084710
Journal	Journal of the Physical Society of Japan
Volume	78
Issue number	8
DOIs	https://doi.org/10.1143/JPSJ.78.084710
Publication status	Published - 2009 Aug

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1143/JPSJ.78.084710

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abstract = "The pressure (P) dependence of AC susceptibility and electrical resistivity of FeSe 0.88 and FeSe 0.5Te 0.5 has been studied. The superconducting transition temperature (T c) of FeSe 0.5Te 0.5 is found to be more sensitive to P than it is in FeSe 0.88, which is believed to arise from the strongly distorted structure. The enhancement of T c by P is mainly attributed to an increase of density of states, which implies that the superconductivity in FeSe 1-xTe x favors pairing mechanism in the context of strong-coupling BCS theory.",

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AU - Huang, Chien Lung

AU - Chou, Chih Chieh

AU - Tseng, Kuo Feng

AU - Huang, Yi Lin

AU - Hsu, Fong Chi

AU - Yeh, Kuo Wei

AU - Wu, Mau Kuen

AU - Yang, Hung Duen

PY - 2009/8

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N2 - The pressure (P) dependence of AC susceptibility and electrical resistivity of FeSe 0.88 and FeSe 0.5Te 0.5 has been studied. The superconducting transition temperature (T c) of FeSe 0.5Te 0.5 is found to be more sensitive to P than it is in FeSe 0.88, which is believed to arise from the strongly distorted structure. The enhancement of T c by P is mainly attributed to an increase of density of states, which implies that the superconductivity in FeSe 1-xTe x favors pairing mechanism in the context of strong-coupling BCS theory.

AB - The pressure (P) dependence of AC susceptibility and electrical resistivity of FeSe 0.88 and FeSe 0.5Te 0.5 has been studied. The superconducting transition temperature (T c) of FeSe 0.5Te 0.5 is found to be more sensitive to P than it is in FeSe 0.88, which is believed to arise from the strongly distorted structure. The enhancement of T c by P is mainly attributed to an increase of density of states, which implies that the superconductivity in FeSe 1-xTe x favors pairing mechanism in the context of strong-coupling BCS theory.

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Pressure effects on superconductivity and magnetism in FeSe _1-xTe_x

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