151 citations · 364 across the 4 of their papers we have counts for
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Retention of Two-Band Superconductivity in Highly Carbon-Doped MgB2
H. Schmidt, K. E. Gray, D. G. Hinks +4
Tunneling data on MgB_{1.8}C_{0.2} show a reduction in the energy gap of the pi-bands by a factor of two from undoped MgB2 that is consistent with the Tc reduction, but inconsisten…
Break-Junction Tunneling on MgB_2
H. Schmidt, J. F. Zasadzinski, K. E. Gray +1
Tunneling data on magnesium diboride, MgB_2, are reviewed with a particular focus on superconductor-insulator-superconductor (SIS) junctions formed by a break-junction method. The…
Evidence for Two-Band Superconductivity from Break Junction Tunneling on MgB2
H. Schmidt, J. F. Zasadzinski, K. E. Gray +1
Superconductor-insulator-superconductor tunnel junctions have been fabricated on MgB2 that display Josephson and quasiparticle currents. These junctions exhibit a gap magnitude, De…
Energy Gap from Tunneling and Metallic Sharvin Contacts onto MgB2: Evidence for a Weakened Surface Layer
Herbert Schmidt, J. F. Zasadzinski, K. E. Gray +1
Point-contact tunnel junctions using a Au tip on sintered MgB2 pellets reveal a sharp superconducting energy gap that is confirmed by subsequent metallic Sharvin contacts made on t…