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Row coupling in an interacting quasi-one-dimensional quantum wire investigated using transport measurements

Smith, LW; Hew, WK; Thomas, KJ; Pepper, M; Farrer, I; Anderson, D; ... Ritchie, DA; + view all (2009) Row coupling in an interacting quasi-one-dimensional quantum wire investigated using transport measurements. PHYS REV B , 80 (4) , Article 041306. 10.1103/PhysRevB.80.041306.

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Abstract

We study electron transport in quasi-one-dimensional wires at relatively weak electrostatic confinements, where the Coulomb interaction distorts the ground state, leading to the bifurcation of the electronic system into two rows. Evidence of finite coupling between the rows, resulting in bonding and antibonding states, is observed. At high dc source-drain bias, a structure is observed at 0.5(2e(2)/h) due to parallel double-row transport, along with a structure at 0.25(2e(2)/h), providing further evidence of coupling between the two rows.

Type:Article
Title:Row coupling in an interacting quasi-one-dimensional quantum wire investigated using transport measurements
DOI:10.1103/PhysRevB.80.041306
Keywords:ELECTRON-GAS
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering

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