CORRELATION BETWEEN D-WAVE PAIRING BEHAVIOR AND MAGNETIC-FIELD-DEPENDENT ZERO-BIAS CONDUCTANCE PEAK

Authors
EKIN JW XU YZ MAO S VENKATESAN T FACE DW EDDY M WOLF SA
Citation
Jw. Ekin et al., CORRELATION BETWEEN D-WAVE PAIRING BEHAVIOR AND MAGNETIC-FIELD-DEPENDENT ZERO-BIAS CONDUCTANCE PEAK, Physical review. B, Condensed matter, 56(21), 1997, pp. 13746-13749
Citations number
56
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
21
Year of publication
1997
Pages
13746 - 13749
Database
ISI
SICI code
0163-1829(1997)56:21<13746:CBDPBA>2.0.ZU;2-0
Abstract
We consistently observe a magnetic-field-dependent conductance peak at zero-bias voltage in a wide range of superconductor/noble-metal junct ions fabricated from oxide superconductors (YBa2Cu3O7-delta and Tl2Ba2 CaCu2O) that have been reported to exhibit d-wave pairing behavior; ho wever, no measurable peak appears in similar junctions made from an s- wave oxide superconductor (Nd1.85Ce0.15CuO4) Explanations of this corr elation are considered in terms of the Appelbaum-Anderson model for ma gnetic interface scattering and the midgap-state model for d-wave inte rface states.