Electron transport in normal-metal/superconductor junctions
Xin-Zhong Yan, Hongwei Zhao, Chia-Ren Hu
DOI 10.1103/PhysRevB.61.14759 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
On the basis of the Keldysh method of nonequilibrium systems, we develop a theory of electron tunneling in normal-metal–superconductor junctions. By using the tunneling Hamiltonian model (being appropriate for the tight-binding systems), the tunneling current can be exactly obtained in terms of the equilibrium Green functions of the normal metal and the superconductor. We calculate the conductance of various junctions. The discrepancy between the present treatment and the well-known scheme by Blonder, Tinkham, and Klapwijk is found for some junctions of low interfacial potential barrier.
Similar papers
Keldysh study of point-contact tunneling between superconductors
similarity 0.90C. J. Bolech & T. Giamarchi
Source status unknown — claims are unverified
Coherent quantum transport in ferromagnet/superconductor/ferromagnet structures
similarity 0.90Z. C. Dong et al.
Source status unknown — claims are unverified
Electronic transport through ferromagnetic and superconducting junctions with spin-filter tunneling barriers
similarity 0.89F. S. Bergeret et al.
Source status unknown — claims are unverified
Quantum transport in a normal metal/odd-frequency superconductor junction
similarity 0.88Jacob Linder et al.
Source status unknown — claims are unverified
Coherent effect in normal-metal/ferromagnetic superconductor/normal-metal double tunnel junctions
similarity 0.88Z. C. Dong
Source status unknown — claims are unverified
Quasiclassical theory of superconductivity near magnetically active interfaces
similarity 0.88A. Millis et al.
Source status unknown — claims are unverified