Correlation of tunneling spectra with surface nano-morphology and doping in thin YBa2Cu3O7-delta films

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Sharoni, A.; Koren, G.; Millo, O.;

Tunneling spectra measured on thin epitaxial YBa2Cu3O7-delta films are found to exhibit strong spatial variations, showing U and V-shaped gaps as well as zero bias conductance peaks typical of a d-wave superconductor. A full correspondence is found between the tunneling... View more
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