Inherent Inhomogeneities in Tunneling Spectra of BSCCO Crystals in the Superconducting State
classification
❄️ cond-mat.supr-con
cond-mat.str-el
keywords
bsccocrystalsinhomogeneitiesspectratunnelingcleavedcoherenceconsistent
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Scanning Tunneling Spectroscopy on cleaved BSCCO(2212) single crystals reveal inhomogeneities on length-scales of $\sim$30 $\AA$. 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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