Quantum interference effects on tunneling conductance and shot noise in ferromagnet/ferromagnet/d-wave superconductor double tunnel junctions

2002 ◽  
Vol 65 (21) ◽  
Author(s):  
Z. C. Dong ◽  
D. Y. Xing ◽  
Jinming Dong
Keyword(s):  
Shot Noise ◽  
Quantum Interference ◽  
Tunnel Junctions ◽  
Tunneling Conductance ◽  
Interference Effects ◽  
D Wave

scholarly journals Quantum interference effects in multi-channel correlated tunneling structures

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
N. S. Maslova ◽  
V. N. Mantsevich ◽  
V. N. Luchkin ◽  
V. V. Palyulin ◽  
P. I. Arseyev ◽  
...  
Keyword(s):  
Coulomb Interaction ◽  
Quantum Interference ◽  
Tunneling Conductance ◽  
Interference Effects ◽  
Impurity Atoms ◽  
Occupation Numbers ◽  
Fano Interference ◽  
Main Effect ◽  
The Impact ◽  
Intermediate System

AbstractIn multi-channel tunneling systems quantum interference effects modify tunneling conductance spectra due to Fano effect. We investigated the impact of Hubbard type Coulomb interaction on tunneling conductance spectra for the system formed by several interacting impurity atoms or quantum dots localised between the contact leads. It was shown that the Fano shape of tunneling conductance spectra strongly changes in the presence of on-site Coulomb interaction between localised electrons in the intermediate system. The main effect which determines the shape of the tunneling peaks could be not Fano interference but mostly nonequilibrium dependence of the occupation numbers on bias voltage.

Differential Conductance for Tunnel Junctions: Effects of d-Wave Gap

1997 ◽  
Vol 11 (29) ◽  
pp. 1285-1294 ◽  
Author(s):  
Biplab Chattopadhyay ◽  
Joydev Lahiri ◽  
A. N. Das
Keyword(s):  
Density Of States ◽  
Tunnel Junctions ◽  
Particle Density ◽  
Differential Conductance ◽  
Tunneling Conductance ◽  
Van Hove Singularity ◽  
Single Particle Density ◽  
Conductance Data ◽  
Quasiparticle Density ◽  
D Wave

Tunneling conductance for N-I-S and S-I-S tunnel junctions are calculated within the framework of an extended van-Hove singularity in the single particle density of states of the superconducting electrode. Results from our calculations are compared with the conductance data of N-I-S and S-I-S junctions consisting of high-T c superconductors. Possible interpretation of the photoemission intensity curves, in terms of the quasiparticle density of states, is considered and predictions are made for conductance including a d-wave pseudogap in the quasiparticle dispersion.

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.

Detailed analysis of spin-dependent quantum interference effects in magnetic tunnel junctions with Fe quantum wells

2013 ◽  
Vol 102 (3) ◽  
pp. 032406 ◽  
Author(s):  
P. Sheng ◽  
F. Bonell ◽  
S. Miwa ◽  
T. Nakamura ◽  
Y. Shiota ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Detailed Analysis ◽  
Quantum Interference ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Interference Effects

Quantum interference effects in percolated metal networks

1994 ◽  
Vol 194-196 ◽  
pp. 1109-1110 ◽  
Author(s):  
M.E. Gershenson ◽  
P.M. Echternach ◽  
H.M. Bozler ◽  
A.L. Bogdanov ◽  
B. Nilsson
Keyword(s):  
Quantum Interference ◽  
Interference Effects
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