Observation of h/e Aharonov–Bohm interference effects in submicron diameter, normal metal rings

1986 ◽  
Vol 4 (1) ◽  
pp. 383 ◽  
Author(s):  
C. P. Umbach
Keyword(s):  
Normal Metal ◽  
Interference Effects ◽  
Metal Rings ◽  
Aharonov Bohm

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.

Periodicity of the Aharonov-Bohm effect in normal-metal rings

1986 ◽  
Vol 56 (2) ◽  
pp. 189-192 ◽  
Author(s):  
A. Douglas Stone ◽  
Y. Imry
Keyword(s):  
Normal Metal ◽  
Metal Rings ◽  
Bohm Effect ◽  
Aharonov Bohm

Currents in Normal‐Metal Rings Exhibit Aharonov–Bohm Effect

Physics Today ◽  
1986 ◽  
Vol 39 (1) ◽  
pp. 17-20 ◽  
Author(s):  
Bertram Schwarzschild
Keyword(s):  
Normal Metal ◽  
Metal Rings ◽  
Bohm Effect ◽  
Aharonov Bohm

scholarly journals Zero-Point Fluctuations and the Quenching of the Persistent Current in Normal Metal Rings

2000 ◽  
Vol 84 (2) ◽  
pp. 346-349 ◽  
Author(s):  
Pascal Cedraschi ◽  
Vadim V. Ponomarenko ◽  
Markus Büttiker
Keyword(s):  
Zero Point ◽  
Persistent Current ◽  
Normal Metal ◽  
Metal Rings
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