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Effect of a local perturbation in a fermionic ladder

Carr, S.T., Narozhny, B.N., Nersesyan, A.A. (2011) Effect of a local perturbation in a fermionic ladder. Physical Review Letters: Moving Physics Forward, 106 (12). pp. 126805-126809. ISSN 0031-9007. (doi:10.1103/PhysRevLett.106.126805) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://www.dx.doi.org/10.1103/PhysRevLett.106.1268...

Abstract

We study the effect of a local external potential on a system of two parallel spin-polarized nanowires placed close to each other. For single-channel nanowires with repulsive interaction we find that transport properties of the system are highly sensitive to the transverse gradient of the perturbation: the asymmetric part completely reflects the electrons leading to vanishing conductance at zero temperature, while the flat potential remains transparent. We envisage a possible application of this unusual property in the sensitive measurement of local potential field gradients.

Item Type: Article
DOI/Identification number: 10.1103/PhysRevLett.106.126805
Uncontrolled keywords: Physics of Quantum Materials, External potential, Highly sensitive, Local perturbation, Potential field, Repulsive interactions, Sensitive measurement, Single-channel, Spin-polarized, Zero temperatures, Transport properties, Nanowires
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 22 Jul 2015 08:37 UTC
Last Modified: 01 Aug 2019 10:39 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49629 (The current URI for this page, for reference purposes)
Carr, S.T.: https://orcid.org/0000-0001-9995-4944
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