Very Low Temperature Tunnelling Spectroscopy in the heavy fermion superconductor PrOs4Sb12
H. Suderow, S. Vieira, J. D. Strand, S. Bud'ko, P. C. Canfield
Abstract
We present scanning tunnelling spectroscopy measurements on the heavy fermion superconductor PrOs4Sb12. Our results show that the superconducting gap opens over a large part of the Fermi surface. The deviations from isotropic BCS s-wave behavior are discussed in terms of a finite distribution of values of the superconducting gap.
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