𝔖 Bobbio Scriptorium
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Effect of geometrical irregularity on transport in wires

✍ Scribed by Toshio Ohshima

Book ID
103918983
Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
346 KB
Volume
11
Category
Article
ISSN
0749-6036

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✦ Synopsis

Geometrical irregularity in ultranarrow wires longer than the phase coherence length produces positive magnetoresistances and smears the magnetic depopulation oscillation occurring as subband edges pass through the Fermi level. Even a slight boundary roughness in the ballistic regime adversely affects the accuracy of conductance quantization, and conductance varies with Fermi energy. The statistical character of the roughness cannot be neglected in either case.

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