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Theory of Scanning Tunneling Microscopy Probe of Impurity States in a D-Wave Superconductor

M. I. Salkola·A. V. Balatsky·D. J. Scalapino
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Abstract

Scanning tunneling microscopy can provide a probe for the detailed study of quasiparticle states in high-Tc superconductors. We propose that it can also be used to acquire specific information about impurity-induced quasiparticle states and the superconducting order-parameter structure. In particular, the local density of states is found to be sensitive to impurity-induced resonances and to the symmetry of the order parameter.

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M. I. Salkola, A. V. Balatsky, D. J. Scalapino. 1997-02-04. Theory of Scanning Tunneling Microscopy Probe of Impurity States in a D-Wave Superconductor. https://doi.org/10.1103/physrevlett.77.1841

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