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Can Impurity Effects Help to Identify the Symmetry of the Order Parameter of the Cuprates?

R. Fehrenbacher·M. R. Norman
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Abstract

The effects of non-magnetic impurities on the properties of superconductors with order parameters (OP) of different symmetry are discussed. In particular, we contrast the case of a d_{x^2 - y^2} with various forms of an anisotropic s-wave (ASW) gap. The biggest qualitative difference occurs if the phase of the s-wave OP does not change sign.

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R. Fehrenbacher, M. R. Norman. 1994-05-10. Can Impurity Effects Help to Identify the Symmetry of the Order Parameter of the Cuprates?. https://doi.org/10.1016/0921-4534(94)92424-4

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