Out-of-plane impurities induced the deviation from the monotonic d-wave superconducting gap in cuprate superconductors

Zhi Wang; Shiping Feng

doi:10.1103/physrevb.80.064510

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arXiv · 0901.0457

Out-of-plane impurities induced the deviation from the monotonic d-wave superconducting gap in cuprate superconductors

Zhi Wang·Shiping Feng

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Abstract

The electronic structure of cuprate superconductors is studied within the kinetic energy driven superconducting mechanism in the presence of the out-of-plane impurities. With increasing the impurity concentration, although both superconducting coherence peaks around nodal and antinodal regions are suppressed, the position of the leading-edge mid-point of the electron spectrum around the nodal region remains at the same position, while it is shifted towards higher binding energies around the antinodal region, this leads to a strong deviation from the monotonic d-wave superconducting gap in the out-of-plane impurity-controlled cuprate superconductors.

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Zhi Wang, Shiping Feng. 2009-08-03. Out-of-plane impurities induced the deviation from the monotonic d-wave superconducting gap in cuprate superconductors. https://doi.org/10.1103/physrevb.80.064510

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