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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

Investigation of electron wave function hybridization in Ga0.25In0.75As/InP arrays

Author

  • T. P. Martin
  • M. S. Fairbanks
  • B. C. Scannell
  • C. A. Marlow
  • Heiner Linke
  • R. P. Taylor

Summary, in English

We present a measurement technique for quantifying coupling between semiconductor quantum dots in an array. This technique employs magnetoconductance fluctuations to probe the decrease in the average spacing of the quantum energy levels as the electron wave functions in the dots undergo hybridization. Focusing on Ga0.25In0.75As dots, we investigate hybridization as the coupling strength is varied and the number of dots in the array is increased. Our technique reveals a significant drop in the average energy level spacing for multiple dot arrays, which is strong evidence for wave function hybridization.

Department/s

  • Solid State Physics

Publishing year

2009

Language

English

Publication/Series

Applied Physics Letters

Volume

95

Issue

18

Document type

Journal article

Publisher

American Institute of Physics (AIP)

Topic

  • Condensed Matter Physics

Keywords

  • magnetoresistance
  • indium compounds
  • III-V semiconductors
  • gallium arsenide
  • energy states
  • fluctuations
  • semiconductor quantum dots
  • wave
  • functions

Status

Published

ISBN/ISSN/Other

  • ISSN: 0003-6951