Evidence of two disorder scales in Ga(AsBi) Journal Articles uri icon

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abstract

  • AbstractTemperature‐dependent photoluminescence in a Ga(AsBi) structure is modelled in an excitonic hopping model and compared to experiment. It is shown that theory and experiment cannot be brought into agreement when using a single energy scale. Thus, a second energy scale is introduced, resulting in a good agreement between theory and experiment. The two scales are identified with spatially large alloy disorder and additional cluster states subdividing this first scale.

authors

  • Imhof, Sebastian
  • Wagner, Christian
  • Chernikov, Alexej
  • Koch, Martin
  • Kolata, Kolja
  • Köster, Niko S
  • Chatterjee, Sangam
  • Koch, Stephan W
  • Lu, Xiangfeng
  • Johnson, Shane R
  • Beaton, Daniel A
  • Tiedje, Thomas
  • Rubel, Oleg
  • Thränhardt, Angela

publication date

  • April 2011