Tunneling measurements of the zero-bias conductance peak and the Bi-Sr-Ca-Cu-O thin-film energy gap

28 January 1991

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 66 (4) , 516-519
https://doi.org/10.1103/physrevlett.66.516

Abstract

We have examined the zero-bias conductance peak that is often found in high-temperature-superconductor tunnel-junction spectra. We have also measured the Bi-Sr-Ca-Cu-O thin-film energy gap. The zero-bias conductance peak can be explained in terms of quasiparticle tunneling, phase diffusion, and a supercurrent. The implications of this model are discussed.

Keywords

This publication has 16 references indexed in Scilit:

Noise-affectedI-Vcurves in small hysteretic Josephson junctions
Physical Review B, 1990
Observations of quasi-particle tunneling and Josephson behavior in Y1Ba2Cu3O7−x/ native barrier/Pb thin-film junctions
Applied Physics Letters, 1990
TUNNELING MEASUREMENTS OF THE ENERGY GAP IN HIGH-T_c SUPERCONDUCTORS
International Journal of Modern Physics B, 1990
Electron tunneling study of the normal and superconducting states of ${Bi}_{1.7}$ ${Pb}_{0.3}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{x}$
Physical Review B, 1989
Evidence for the superconducting proximity effect in junctions between the surfaces of YBa2Cu3Ox thin films
Applied Physics Letters, 1989
Tunneling study of clean and oriented Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O surfaces
Physica C: Superconductivity and its Applications, 1989
Tunneling spectroscopy in thin films YBCO/Pb tunnel structures
IEEE Transactions on Magnetics, 1989
Josephson junctions with bulk YBa/sub 2/Cu/sub 3/O/sub 7-x/, Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub x/ and Tl/sub 2/Ca/sub 2/Ba/sub 2/Cu/sub 3/O/sub 10+x/
IEEE Transactions on Magnetics, 1989
A new approach to high resolution measurements of structure in superconducting tunneling currents
Review of Scientific Instruments, 1974
Voltage Due to Thermal Noise in the dc Josephson Effect
Physical Review Letters, 1969