Impurity-induced Tc reduction in high-temperature superconductors
We study the effects of nonmagnetic impurities substituted for Cu atoms on the superconducting transition temperature Tc in high-temperature cuprate superconductors, using the d-p model within the fluctuation exchange approximation and the coherent potential approximation. Tc near the optimum-doped...
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| Main Authors: | , , , |
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| 格式: | text |
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Animo Repository
2004
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| 在線閱讀: | https://animorepository.dlsu.edu.ph/faculty_research/4456 |
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| 總結: | We study the effects of nonmagnetic impurities substituted for Cu atoms on the superconducting transition temperature Tc in high-temperature cuprate superconductors, using the d-p model within the fluctuation exchange approximation and the coherent potential approximation. Tc near the optimum-doped region reduces more rapidly than that for the over-doped region. We show that the rapid reduction of Tc is due mainly to the damping of the quasiparticle in our formalism. |
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