Resonant fractional conductance through a 1D Wigner chain

Rose Davies; Igor V. Lerner; Igor V. Yurkevich

doi:10.1038/s42005-024-01545-5

Resonant fractional conductance through a 1D Wigner chain

Rose Davies, Igor V. Lerner^*, Igor V. Yurkevich

^*Corresponding author for this work

Physics and Astronomy

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Abstract

In recent experiments on conductance of one-dimensional (1D) channels in ultra-clean samples, a diverse set of plateaus were found at fractions of the quantum of conductance in zero magnetic field. We consider a discrete model of strongly interacting electrons in a clean 1D system where the current between weak tunneling contacts is carried by fractionally charged solutions. While in the spinless case conductance remains unaffected by the interaction, as is typical for the strongly interacting clean 1D systems, we demonstrate that in the spinful case the peak conductance takes fractional values that depend on the filling factor of the 1D channel.

Original language	English
Article number	67
Number of pages	6
Journal	Communications Physics
Volume	7
Issue number	1
DOIs	https://doi.org/10.1038/s42005-024-01545-5
Publication status	Published - 28 Feb 2024

Bibliographical note

We gratefully acknowledge support from EPSRC under the grant EP/R029075/1 (I.V.L.) and from the Leverhulme Trust under the grant RPG-2019-317 (I.V.Y.).

Keywords

Electronic properties and materials
Quantum fluids and solids

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10.1038/s42005-024-01545-5Licence: Creative Commons: Attribution (CC BY)

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Resonant fractional conductance through a 1D Wigner chain
Davies, R., Lerner, I. V. & Yurkevich, I. V., 15 Jul 2023, arXiv.
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abstract = "In recent experiments on conductance of one-dimensional (1D) channels in ultra-clean samples, a diverse set of plateaus were found at fractions of the quantum of conductance in zero magnetic field. We consider a discrete model of strongly interacting electrons in a clean 1D system where the current between weak tunneling contacts is carried by fractionally charged solutions. While in the spinless case conductance remains unaffected by the interaction, as is typical for the strongly interacting clean 1D systems, we demonstrate that in the spinful case the peak conductance takes fractional values that depend on the filling factor of the 1D channel.",

keywords = "Electronic properties and materials, Quantum fluids and solids",

author = "Rose Davies and Lerner, {Igor V.} and Yurkevich, {Igor V.}",

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AU - Yurkevich, Igor V.

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N2 - In recent experiments on conductance of one-dimensional (1D) channels in ultra-clean samples, a diverse set of plateaus were found at fractions of the quantum of conductance in zero magnetic field. We consider a discrete model of strongly interacting electrons in a clean 1D system where the current between weak tunneling contacts is carried by fractionally charged solutions. While in the spinless case conductance remains unaffected by the interaction, as is typical for the strongly interacting clean 1D systems, we demonstrate that in the spinful case the peak conductance takes fractional values that depend on the filling factor of the 1D channel.

AB - In recent experiments on conductance of one-dimensional (1D) channels in ultra-clean samples, a diverse set of plateaus were found at fractions of the quantum of conductance in zero magnetic field. We consider a discrete model of strongly interacting electrons in a clean 1D system where the current between weak tunneling contacts is carried by fractionally charged solutions. While in the spinless case conductance remains unaffected by the interaction, as is typical for the strongly interacting clean 1D systems, we demonstrate that in the spinful case the peak conductance takes fractional values that depend on the filling factor of the 1D channel.

KW - Electronic properties and materials

KW - Quantum fluids and solids

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VL - 7

JO - Communications Physics

JF - Communications Physics

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ER -

Resonant fractional conductance through a 1D Wigner chain

Abstract

Bibliographical note

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Resonant fractional conductance through a 1D Wigner chain

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