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Gradient and amplitude scattering in surface-corrugated waveguides

F. M. Izrailev, N. M. Makarov, and M. Rendón
Phys. Rev. B 72, 041403(R) – Published 27 July 2005

Abstract

We investigate the interplay between amplitude and square-gradient scattering from the rough surfaces in multimode waveguides (conducting quantum wires). The main result is that for any (even small in height) roughness the square-gradient terms in the expression for the wave-scattering length (electron mean free path) are dominant, provided the correlation length of the surface disorder is small enough. This important effect is missed in existing studies of the surface scattering.

  • Figure
  • Received 27 March 2005

DOI:https://doi.org/10.1103/PhysRevB.72.041403

©2005 American Physical Society

Authors & Affiliations

F. M. Izrailev*

  • Instituto de Física, Universidad Autónoma de Puebla, Puebla, Puebla, 752570, México

N. M. Makarov

  • Instituto de Ciencias, Universidad Autónoma de Puebla, Puebla, Puebla, 752570, México

M. Rendón

  • Facultad de Ciencias de la Electrónica, Universidad Autónoma de Puebla, Puebla, Puebla, 752570, México

  • *Electronic address: izrailev@venus.ifuap.buap.mx
  • Electronic address: makarov@siu.buap.mx
  • Electronic address: mrendon@venus.ifuap.buap.mx

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Issue

Vol. 72, Iss. 4 — 15 July 2005

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