Ballistic transport in a two-subband two-dimensional electron system

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Abstract

We report a quantitative study of ballistic transport, via measurements of commensurability oscillations (CO’s), in a two-dimensional electron system confined to a wide square quantum well with two electric subbands occupied. The Fourier power spectrum of the CO’s shows two clear-frequency components that correspond to ballistic transport in the upper and lower subbands. Through inverse Fourier transformation of each individual frequency component, we reconstruct the CO’s of ballistic electrons in different subbands and extract their scattering times.

Original languageEnglish (US)
Pages (from-to)1138-1141
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume58
Issue number3
DOIs
StatePublished - Jan 1 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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