Zero Bias Conductance Peak Enhancement in Bi 2Sr 2CaCu 2O 8+δ-SiO-Ag Planar Tunnel Junctions

2000 ◽  
Vol 69 (9) ◽  
pp. 2743-2746 ◽  
Author(s):  
Iduru Shigeta ◽  
Toll Uchida ◽  
Yukihiro Tominari ◽  
Takeshi Arai ◽  
Fusao Ichikawa ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Zero Bias ◽  
Conductance Peak ◽  
Peak Enhancement ◽  
Zero Bias Conductance

scholarly journals Quantum tunneling theory of Cooper pairs as bosonic particles

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Edgar J. Patiño ◽  
Daniel Lozano-Gómez
Keyword(s):  
Quantum Tunneling ◽  
Alternative Explanation ◽  
Tunnel Junctions ◽  
Tunneling Current ◽  
Phenomenological Theory ◽  
Low Energy ◽  
Cooper Pairs ◽  
Zero Bias ◽  
Conductance Peak ◽  
Zero Bias Conductance

AbstractWe propose a simple phenomenological theory for quantum tunneling of Cooper pairs, in superconductor/insulator/superconductor tunnel junctions, for a regime where the system can be modeled as bosonic particles. Indeed, provided there is an absence of quasiparticle excitations (fermions), our model reveals a rapid increase in tunneling current, around zero bias voltage, which rapidly saturates. This manifests as a zero bias conductance peak that strongly depends on the superconductors temperature in a non-monotonic way. This low energy tunneling of Cooper pairs could serve as an alternative explanation for a number of tunneling experiments where zero bias conductance peak has been observed.

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

scholarly journals Anomalous Zero-Bias Conductance Peak in a Nb–InSb Nanowire–Nb Hybrid Device

Nano Letters ◽  
2012 ◽  
Vol 12 (12) ◽  
pp. 6414-6419 ◽  
Author(s):  
M. T. Deng ◽  
C. L. Yu ◽  
G. Y. Huang ◽  
M. Larsson ◽  
P. Caroff ◽  
...  
Keyword(s):  
Zero Bias ◽  
Hybrid Device ◽  
Conductance Peak ◽  
Zero Bias Conductance
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