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Title: Resonant reflection of interacting electrons from an impurity in a quantum wire: Interplay of Zeeman and spin-orbit effects

Journal Article · · Physical Review. B
 [1];  [1]
  1. Univ. of Utah, Salt Lake City, UT (United States)
+ Show Author Affiliations

A single-channel quantum wire with two well-separated Zeeman subbands and in the presence of weak spin-orbit coupling is considered. An impurity level which is split off the upper subband is degenerate with the continuum of the lower subband. We show that, when the Fermi level lies in the vicinity of the impurity level, the transport is completely blocked. This is the manifestation of the effect of resonant reflection and can be viewed as resonant tunneling between left-moving and right-moving electrons via the impurity level. We incorporate electron-electron interactions and study their effect on the shape of the resonant-reflection profile. Furthermore, this profile becomes a two-peak structure, where one peak is caused by resonant reflection itself, while the origin of the other peak is reflection from the Friedel oscillations of the electron density surrounding the impurity.

Research Organization:
Univ. of Utah, Salt Lake City, UT (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-06ER46313
OSTI ID:
1609738
Alternate ID(s):
OSTI ID: 1477556
Journal Information:
Physical Review. B, Vol. 98, Issue 14; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

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Figures / Tables (4)

FIG. 1(p. 3)figure FIG. 1
FIG. 2(p. 5)figure FIG. 2
FIG. 3(p. 6)figure FIG. 3
FIG. 4(p. 8)figure FIG. 4

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Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
materials science
physics
spin-orbit coupling
1-dimensional systems