Mechanisms for extra conductance plateaus in quantum wires

Kenji Hirose; Ned S. Wingreen; Shu Shen Li

doi:10.1103/physrevb.63.033315

Mechanisms for extra conductance plateaus in quantum wires

Kenji Hirose, Ned S. Wingreen, Shu Shen Li

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Spin-density-functional theory is employed to calculate the conductance G through a quasi-one-dimensional quantum wire. In addition to the usual subband quantization plateaus at G=n(2e²/h), we find additional structures at (n+ 1/2)(2e²/h). The extra structures appear whether or not the electrons in the wire spin polarize. However, only the spin-polarized case reproduces the experimental temperature and magnetic field dependences.

Original language	English (US)
Article number	033315
Pages (from-to)	333151-333154
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	63
Issue number	3
DOIs	https://doi.org/10.1103/physrevb.63.033315
State	Published - 2001

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/physrevb.63.033315

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abstract = "Spin-density-functional theory is employed to calculate the conductance G through a quasi-one-dimensional quantum wire. In addition to the usual subband quantization plateaus at G=n(2e2/h), we find additional structures at (n+ 1/2)(2e2/h). The extra structures appear whether or not the electrons in the wire spin polarize. However, only the spin-polarized case reproduces the experimental temperature and magnetic field dependences.",

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AU - Li, Shu Shen

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AB - Spin-density-functional theory is employed to calculate the conductance G through a quasi-one-dimensional quantum wire. In addition to the usual subband quantization plateaus at G=n(2e2/h), we find additional structures at (n+ 1/2)(2e2/h). The extra structures appear whether or not the electrons in the wire spin polarize. However, only the spin-polarized case reproduces the experimental temperature and magnetic field dependences.

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Mechanisms for extra conductance plateaus in quantum wires

Abstract

All Science Journal Classification (ASJC) codes

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