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10 June 1996 Tunneling investigation of the gap-like feature in superconducting Y1-xPrxBa2Cu3O7 thin films
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Abstract
We have measured the conductance of Y1-xPrxBa2Cu3O7/Pb planar tunnel junctions fabricated on thin films where x equals 0, 0.2 and 0.4. When tunneling into the ab-plane, there is a weak decrease in conductance at eV approximately 2kBTc, where a superconducting gap is expected. With increasing Pr concentration, the energy where this gap-like feature appears is reduced by an amount commensurate with the reduction in Tc. The gap-like structure in the c-axis tunneling conductance becomes weaker, but displays no change in energy when YBCO is doped with Pr.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mark W. Covington and Laura H. Greene "Tunneling investigation of the gap-like feature in superconducting Y1-xPrxBa2Cu3O7 thin films", Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); https://doi.org/10.1117/12.241798
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