Quantum Interference Effects in Small Normal-Metal Rings

1985 ◽  
Vol 452 (1) ◽  
pp. 312-315
Author(s):  
YOSEPH IMRY
Keyword(s):  
Quantum Interference ◽  
Normal Metal ◽  
Interference Effects ◽  
Metal Rings

NOVEL INTERFERENCE EFFECTS IN MULTIPLY CONNECTED NORMAL METAL RINGS

1994 ◽  
Vol 08 (05) ◽  
pp. 301-310 ◽  
Author(s):  
A.M. JAYANNAVAR ◽  
P. SINGHA DEO
Keyword(s):  
Quantum Interference ◽  
Normal Metal ◽  
Quantum Mechanical ◽  
Small Field ◽  
Interference Effects ◽  
Multiply Connected ◽  
Small Magnetic Field ◽  
Metal Rings ◽  
Bohm Effect ◽  
Aharonov Bohm

We have investigated the magnetoconductance of a normal metal loop connected to ideal wires in the presence of magnetic flux. The quantum mechanical potential, V, in the loop is much higher than that in the connecting wires (V=0). The electrons with energies less than the potential height on entering the loop propagate as evanescent modes. In such a situation, the contribution to the conductance arises from two non-classical effects, namely, Aharonov-Bohm effect and quantum tunneling. For this case we show that, on application of a small magnetic field, the conductance initially always decreases, or small field magnetoconductance is always negative. This is in contrast to the behavior in the absence of the barrier, wherein the small field magnetoconductance is either positive or negative depending on the Fermi energy and other geometric details. We also discuss the possibility of a better switch action based on quantum interference effects in such structures.

scholarly journals Observation of quantum interference conductance fluctuations in metal rings with strong spin–orbit coupling

2020 ◽  
Vol 117 (24) ◽  
pp. 242402
Author(s):  
R. Ramos ◽  
T. Makiuchi ◽  
T. Kikkawa ◽  
S. Daimon ◽  
K. Oyanagi ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Metal Rings ◽  
Conductance Fluctuations ◽  
Strong Spin

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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