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Quantum interference at mesoscopic length scales

✍ Scribed by Vipin Srivastava

Book ID
104356145
Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
309 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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✦ Synopsis

A recent quantu m Hall-effect experi ment on a sa mple whose di mensions . are of the order. of mesoscopic length scales has shown periodic oscill~tions in. the ~ini ma of magnetore.s1s~ance correspo~dlng to platea~s i=2 and 4. It is shown that this result 1S a mamfestatlOn of a recent predlctlOn made by.thlS .author whereln a phase-driven current in the transverse direction can mix the two edge currents and glVe nse to quantu m interference.

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## Abstract We propose a general formalism for describing the coexistence of coherent and resonant transport in hybrid mesoscopic structures. The approach is based on Landauer‐BΓΌttiker formula for the electronic transmittance and on an old formula of Feshbach. The latter gives the complete Green fu