Electron-electron scattering in quantum wires and its possible suppression due to spin effects

Gerhard Fasol and Hiroyuki Sakaki
Phys. Rev. Lett. 70, 3643 – Published 7 June 1993
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Abstract

A microscopic picture of electron-electron pair scattering in single mode quantum wires is introduced which includes electron spin. A new source of excess noise for hot carriers is presented. We show that zero magnetic field spin splitting in quantum wires can lead to a dramatic spin-subband dependence of electron-electron scattering, including the possibility of strong suppression. As a consequence extremely long electron coherence lengths and new spin-related phenomena are predicted. Since electron bands in III-V semiconductor quantum wires are in general spin split in zero applied magnetic field, these new transport effects are of general importance.

  • Received 25 August 1992

DOI:https://doi.org/10.1103/PhysRevLett.70.3643

©1993 American Physical Society

Authors & Affiliations

Gerhard Fasol and Hiroyuki Sakaki

  • Research Center for Advanced Science and Technology (RCAST), University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153, Japan

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Issue

Vol. 70, Iss. 23 — 7 June 1993

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