Two-gap superconductivity in Ag1–xMo6S8 Chevrel phase
Two-gap superconductivity in Ag1–xMo6S8 Chevrel phase
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Ag1âxMo6S8 Chevrel 相的两能隙超导
DOI:
10.1088/1361-648x/aa97fd
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
Roman Gumeniuk
中科院分区:
文献类型:
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作者:
Manuel Feig;Matej Bobnar;Igor Veremchuk;Christoph Hennig;Ulrich Burkhardt;Ronald Starke;Bohdan Kundys;Andreas Leithe-Jasper;Roman Gumeniuk
The superconducting properties of [Formula: see text] Mo 6 S 8 [[Formula: see text]] Chevrel phase [[Formula: see text] K] are studied on a sample compacted by spark plasma sintering. Both lower ([Formula: see text] mT) and the upper [[Formula: see text] T] critical magnetic fields are obtained from magnetization and electrical resistivity measurements for the first time. The analysis of the low-temperature electronic specific heat indicates [Formula: see text] Mo 6 S 8 to be a two band superconductor with the energy gaps [Formula: see text] meV (95%) and [Formula: see text] meV (5%). Theoretical DFT calculations reveal a much stronger electron-phonon coupling in the studied Chevrel phase compared to earlier reports. Similar to MgB 2, the Fermi surface of studied Chevrel phase is formed by two hole-like and one electron-like bands.
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DOI:
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发表时间:
1995
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作者:
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1982
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1977
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1983
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DOI:
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发表时间:
1987
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作者:
C. Geantet;J. Padiou;O. Peña;M. Sergent;R. Horyǹ
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