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Shaping Electronic Flows with Strongly Correlated Physics

delete2023-11-13
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OA
AI
A
André Erpenbeck
E
Emanuel Gull *
G
Guy Cohen *
DOI:10.1021/acs.nanolett.3c03067delete
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Abstract

Abstract

En 中文
Nonequilibrium quantum transport is of central importance in nanotechnology. Its description requires the understanding of strong electronic correlations that couple atomic-scale phenomena to the nanoscale. So far, research in correlated transport has focused predominantly on few-channel transport, precluding the investigation of cross-scale effects. Recent theoretical advances enable the solution of models that capture the interplay between quantum correlations and confinement beyond a few channels. This problem is the focus of this study. We consider an atomic impurity embedded in a metallic nanosheet spanning two leads, showing that transport is significantly altered by tuning only the phase of a single local hopping parameter. Furthermore-depending on this phase-correlations reshape the electronic flow throughout the sheet, either funneling it through the impurity or scattering it away from a much larger region. This demonstrates the potential for quantum correlations to bridge length scales in the design of nanoelectronic devices and sensors.
Keywords:
Nonequilibrium transport
Strongly correlated electronsystems
Nanoscale electronics
Quantum Monte Carlo

Journal

Nano Letters cover
Nano Letters
IF:
9.1
Papers:
2.7W
Citations:
16.5W

Organization

U
University of Michigan
Scholars:
6.4W
Papers: 5.3W
Citations: 124
U
university of michigan system
Scholars:
9.1W
Papers: 8.6W
Citations: 133