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Inherent Inhomogeneities in Tunneling Spectra of BSCCO Crystals in the Superconducting State

C. Howald·P. Fournier·A. Kapitulnik
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Abstract

Scanning Tunneling Spectroscopy on cleaved BSCCO(2212) single crystals reveal inhomogeneities on length-scales of $\sim$30 $Å$. While most of the surface yields spectra consistent with a d-wave superconductor, small regions show a doubly gapped structure with both gaps lacking coherence peaks and the larger gap having a size typical of the respective pseudo-gap for the same sample.

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C. Howald, P. Fournier, A. Kapitulnik. 2001-01-17. Inherent Inhomogeneities in Tunneling Spectra of BSCCO Crystals in the Superconducting State. https://doi.org/10.1103/physrevb.64.100504

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