Spin-Orbit-Induced Spin-Density Wave in a Quantum Wire

Jianmin Sun, Suhas Gangadharaiah, and Oleg A. Starykh
Phys. Rev. Lett. 98, 126408 – Published 23 March 2007

Abstract

We present analysis of the interacting quantum wire problem in the presence of magnetic field and spin-orbit interaction. We show that an interesting interplay of Zeeman and spin-orbit terms, facilitated by the electron-electron interaction, results in the spin-density wave state when the magnetic field and spin-orbit axes are orthogonal. This strongly affects charge transport through the wire: With the spin-density wave stabilized, single-particle backscattering off a nonmagnetic impurity becomes irrelevant. The sensitivity of the effect to the direction of the magnetic field can be used for experimental verification of this proposal.

  • Figure
  • Received 6 November 2006

DOI:https://doi.org/10.1103/PhysRevLett.98.126408

©2007 American Physical Society

Authors & Affiliations

Jianmin Sun, Suhas Gangadharaiah, and Oleg A. Starykh

  • Department of Physics, University of Utah, Salt Lake City, Utah 84112, USA

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Issue

Vol. 98, Iss. 12 — 23 March 2007

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