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Disorder and superconductivity in A-15 compounds

Physical Review Letters, ISSN: 0031-9007, Vol: 43, Issue: 17, Page: 1263-1266
1979
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  • Citations
    18
    • Citation Indexes
      18

Article Description

The universal depression of the superconducting transition temperature Tc in disordered A-15 compounds is examined. Existing energy-band calculations are used to calculate the density of electron states, which is possibly enhanced by disorder in some cases such as Nb3Ge. The dramatic drop in Tc in Nb3Ge at a critical value of the resistivity is attributed to overdamping of acoustic plasmons which decreases the electron pairing interaction despite small changes in the density of states. © 1979 The American Physical Society.

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