d-Wave Tunnel Junctions

1999 ◽  
Vol 13 (09n10) ◽  
pp. 1295-1299
Author(s):  
A. M. Cucolo ◽  
M. Cuoco ◽  
C. Noce
Keyword(s):  
Weak Coupling ◽  
Tunnel Junctions ◽  
Coupling Model ◽  
Normal Metal ◽  
Tunneling Conductance ◽  
Spin States ◽  
S Wave ◽  
Zero Bias ◽  
Zero Bias Conductance ◽  
D Wave

We study the tunneling spectra for superconductor-insulator-normal metal (S-I-N) tunnel junctions with an s -wave or a d -wave superconductor within the weak-coupling model. We deduce the temperature behavior of tunneling conductance and their peak positions as well as of the zero-bias conductance. The results obtained allow us to discriminate among the two singlet spin states.

Effects of Incomplete Superconducting Condensation on Electron Tunneling

2003 ◽  
Vol 17 (18n20) ◽  
pp. 3293-3299
Author(s):  
Ju H. Kim
Keyword(s):  
Strong Coupling ◽  
Weak Coupling ◽  
Tunnel Junctions ◽  
Electron Tunneling ◽  
Tunneling Conductance ◽  
S Wave ◽  
General Belief ◽  
Standard Result ◽  
Nonmagnetic Impurities ◽  
Sis Junction

We studied the tunnel junctions of s-wave superconductors in the presence of nonmagnetic impurities and uncondensed quasiparticles. Contrary to general belief, we found that the tunneling conductance in an SIN junction made of strong-coupling superconductors is modified by uncondensed quasiparticles. Also, the Josephson current in an SIS junction can be drastically reduced by these particles from the standard result of Ambegaokar and Baratoff. In weak-coupling superconductors, the conventional junction behaviors are restored.

Zero-bias conductance peak reduction by diffusive normal metal in high-Tc superconductor tunnel junctions

2005 ◽  
Vol 66 (8-9) ◽  
pp. 1401-1404
Author(s):  
Iduru Shigeta ◽  
Yukio Tanaka ◽  
Fusao Ichikawa ◽  
Yasuhiro Asano ◽  
Satoshi Kashiwaya
Keyword(s):  
Tunnel Junctions ◽  
Normal Metal ◽  
Peak Reduction ◽  
Zero Bias ◽  
High Tc ◽  
High Tc Superconductor ◽  
Conductance Peak ◽  
Zero Bias Conductance

Power Law Behavior of the Zero Bias Tunneling Conductance: the New Evidence for d -Wave Symmetry

2000 ◽  
Vol 17 (10) ◽  
pp. 760-761 ◽  
Author(s):  
Li Shao-Xiong ◽  
Tao Hong-Jie ◽  
Xuan Yi ◽  
Zhao Bai-Ru ◽  
Zhao Zhong-Xian
Keyword(s):  
Power Law ◽  
Tunneling Conductance ◽  
Zero Bias ◽  
Wave Symmetry ◽  
New Evidence ◽  
D Wave
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