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Broadband optical absorption in a two-dimensional electron gas in the presence of spin-orbit interaction and high magnetic fields

Journal Article


Abstract


  • We examine the selection rules for electronphoton interaction in a two-dimensional electron gas (2DEG) in the presence of the

    Rashba spinorbit interaction (RSOI) and quantizing magnetic fields. In such a case, new channels open up for electronic transition

    accompanied by the absorption of photons. As a result, two absorption peaks and a broadband absorption spectrum can be observed for

    high-mobility samples at relatively high magnetic fields. We find that electronic transitions between the neighboring Landau levels within

    the same spin orientation are the main channels for optical absorption in a spinsplit 2DEG.

UOW Authors


  •   Yang, C H. (external author)
  •   Xu, Wen (external author)
  •   Zhang, Jun (external author)
  •   Zeng, Zhi (external author)
  •   Zhang, C
  •   Tang, C S (external author)

Publication Date


  • 2008

Citation


  • Yang, C., Xu, W., Zhang, J., Zeng, Z., Zhang, C. & Tang, C. (2008). Broadband optical absorption in a two-dimensional electron gas in the presence of spin-orbit interaction and high magnetic fields. Physica E: Low-Dimensional Systems and Nanostructures, 40 1896-1898.

Scopus Eid


  • 2-s2.0-41349107994

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1781

Number Of Pages


  • 2

Start Page


  • 1896

End Page


  • 1898

Volume


  • 40

Abstract


  • We examine the selection rules for electronphoton interaction in a two-dimensional electron gas (2DEG) in the presence of the

    Rashba spinorbit interaction (RSOI) and quantizing magnetic fields. In such a case, new channels open up for electronic transition

    accompanied by the absorption of photons. As a result, two absorption peaks and a broadband absorption spectrum can be observed for

    high-mobility samples at relatively high magnetic fields. We find that electronic transitions between the neighboring Landau levels within

    the same spin orientation are the main channels for optical absorption in a spinsplit 2DEG.

UOW Authors


  •   Yang, C H. (external author)
  •   Xu, Wen (external author)
  •   Zhang, Jun (external author)
  •   Zeng, Zhi (external author)
  •   Zhang, C
  •   Tang, C S (external author)

Publication Date


  • 2008

Citation


  • Yang, C., Xu, W., Zhang, J., Zeng, Z., Zhang, C. & Tang, C. (2008). Broadband optical absorption in a two-dimensional electron gas in the presence of spin-orbit interaction and high magnetic fields. Physica E: Low-Dimensional Systems and Nanostructures, 40 1896-1898.

Scopus Eid


  • 2-s2.0-41349107994

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1781

Number Of Pages


  • 2

Start Page


  • 1896

End Page


  • 1898

Volume


  • 40