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Portrait of Heiner Linke; Photo: Kennet Ruona

Heiner Linke

Professor, Deputy dean at Faculty of Engineering, LTH

Portrait of Heiner Linke; Photo: Kennet Ruona

Is it the boundaries or disorder that dominates electron transport in semiconductor `billiards'?

Author

  • A. P. Micolich
  • A. M. See
  • B. C. Scannell
  • C. A. Marlow
  • T. P. Martin
  • I. Pilgrim
  • A. R. Hamilton
  • Heiner Linke
  • R. P. Taylor

Summary, in English

Semiconductor billiards are often considered as ideal systems for studying dynamical chaos in the quantum mechanical limit. In the traditional picture, once the electron's mean free path, as determined by the mobility, becomes larger than the device, disorder is negligible and electron trajectories are shaped by specular reflection from the billiard walls alone. Experimental insight into the electron dynamics is normally obtained by magnetoconductance measurements. A number of recent experimental studies have shown these measurements to be largely independent of the billiard's exact shape, and highly dependent on sample-to-sample variations in disorder. In this paper, we discuss these more recent findings within the full historical context of work on semiconductor billiards, and offer strong evidence that small-angle scattering at the sub-100 nm length-scale dominates transport in these devices. This has important implications for the role these devices can play for experimental tests of ideas in quantum chaos. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Department/s

  • Solid State Physics
  • NanoLund

Publishing year

2013

Language

English

Pages

332-347

Publication/Series

Fortschritte der Physik

Volume

61

Issue

2-3

Document type

Journal article review

Publisher

Wiley-Blackwell

Topic

  • Condensed Matter Physics

Keywords

  • Quantum chaos
  • semiconductor billiards
  • quantum dots
  • ballistic
  • transport

Status

Published

ISBN/ISSN/Other

  • ISSN: 0015-8208