Quasiparticle resonant states as a probe of short-range electronic structure and Andreév coherence

Details Quasiparticle resonant states as a probe of short-range electronic structure and Andreév coherence Quasiparticle resonant states as a probe of short-range electronic structure and Andreév coherence

2000-01-31

arxiv.org/abs/cond-mat/0001454v1

Physics

Condensed Matter

Superconductivity

10 pages, 4 figures

Scientific paper

10.1103/PhysRevB.61.R14920

The recently observed properties of quasiparticle resonant states near impurities on the surface of superconducting BSCCO demonstrate that in-plane Andreev processes are either absent or phase-incoherent. Analysis of the spectral and spatial details of the electronic structure near a Zn impurity also suggest an effective magnetic component of the impurity potential. Further experiments are proposed to clarify whether the effective moments of nearby impurities are correlated.

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