L.K. Wang, A. Acovic, et al.
MRS Spring Meeting 1993
We have measured the superconducting energy gap of high-critical- temperature (Tc90 K) YBa2Cu3O9-y samples using tunneling and infrared techniques. From our tunneling data, we place limits on the reduced superconducting energy gap of 3.7<2/kBTc<5.6. The tunneling gaps for a single-crystal sample are essentially the same if the tunneling tip is oriented either parallel or perpendicular to the CuO planes. The infrared measurements give a smaller apparent gap. We discuss the origins of the differences between the infrared and tunneling results. © 1987 The American Physical Society.
L.K. Wang, A. Acovic, et al.
MRS Spring Meeting 1993
Imran Nasim, Melanie Weber
SCML 2024
M. Hargrove, S.W. Crowder, et al.
IEDM 1998
Julian J. Hsieh
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films