CONDUCTANCE ZERO-BIAS ANOMALY IN HIGH-TEMPERATURE SUPERCONDUCTING GRAIN-BOUNDARY JOSEPHSON-JUNCTIONS

Authors
RICHTER P BECK A FROEHLICH OM GROSS R KOREN G
Citation
P. Richter et al., CONDUCTANCE ZERO-BIAS ANOMALY IN HIGH-TEMPERATURE SUPERCONDUCTING GRAIN-BOUNDARY JOSEPHSON-JUNCTIONS, Czechoslovak journal of Physics, 46, 1996, pp. 1303-1304
Citations number
11
Categorie Soggetti
Physics
Journal title
Czechoslovak journal of Physics → ACNP
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
3
Pages
1303 - 1304
Database
ISI
SICI code
0011-4626(1996)46:<1303:CZAIHS>2.0.ZU;2-Z
Abstract
A zero-bias conductance peak is found in the tunneling characteristics of high temperature superconducting bicrystal grain boundary junction s (GBJs). The analysis of the anomaly is performed in terms of spin-fl ip and Kondo-type scattering at the interface (Anderson-Applebaum mode l). Applying a magnetic field parallel to the grain boundary barrier t he splitting of the Kondo peak is observed implying the existence of s pin-hip and Kondo-type scattering in the grain boundary barrier.