Phys. Rev. B 56, 13746–13749 (1997)Correlation between d-wave pairing behavior and magnetic-field-dependent zero-bias conductance peakReceived 18 February 1997; published in the issue dated 1 December 1997 We consistently observe a magnetic-field-dependent conductance peak at zero-bias voltage in a wide range of superconductor/noble-metal junctions fabricated from oxide superconductors (YBa2Cu3O7-δ and Tl2Ba2CaCu2O) that have been reported to exhibit d-wave pairing behavior; however, no measurable peak appears in similar junctions made from an s-wave oxide superconductor (Nd1.85Ce0.15CuO4). Explanations of this correlation are considered in terms of the Appelbaum-Anderson model for magnetic interface scattering and the midgap-state model for d-wave interface states. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.56.13746
DOI:
10.1103/PhysRevB.56.13746
PACS:
74.50.+r, 74.20.Mn, 74.25.Ha, 74.72.-h
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.