Carrier scattering processes in quantum wires at high magnetic fields by a correlation field analysis

Yuichi Ochiai, Kazunuki Yamamoto, Koji Ishibashi, Jonathan P. Bird, Yoshinobu Aoyagi, Takuo Sugano, David K. Ferry

Research output: Contribution to journalArticle

Abstract

We study carrier scattering processes in GaAs/AlGaAs quantum wires by a correlation field analysis of the conductance fluctuations observed in their low temperature magnetoresistance. In the diffusive transport regime, the magneto-resistance at low magnetic fields shows universal conductance fluctuations (UCF) and the correlation field Bc is field independent. However, at higher fields, where the Landau level quantization is resolved, Bc is found to increase as a power law of the magnetic field. We compare our results with recent theoretical predictions for the diffusive nature and also with our own semi-classical explanations for the dynamical transport.

Original languageEnglish (US)
Pages (from-to)376-379
Number of pages4
JournalPhysica B: Condensed Matter
Volume216
Issue number3-4
DOIs
StatePublished - Jan 1 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Ochiai, Y., Yamamoto, K., Ishibashi, K., Bird, J. P., Aoyagi, Y., Sugano, T., & Ferry, D. K. (1996). Carrier scattering processes in quantum wires at high magnetic fields by a correlation field analysis. Physica B: Condensed Matter, 216(3-4), 376-379. https://doi.org/10.1016/0921-4526(95)00522-6