Skip to main content
placeholder image

Negative long wavelength dielectric constant in semiconductor QWs

Journal Article


Abstract


  • In this work we present an analytical and numerical result of the dielectric function of electronic systems

    with Rashba spin-orbit interaction. By solving the quantum equation of motion for the electron density

    matrix, we obtained the dielectric function in the mean-field approximation. It is shown that when the

    momentum transfer q for an electronic transition is smaller than a critical value characterized by the spinorbit

    interaction, the static dielectric function increases with q, indicating on-set of a new collective state.

Authors


  •   Pilehrood, S Hessami (external author)
  •   Gao, Feng (external author)
  •   Ma, Zhongshui (external author)
  •   Xu, Wen (external author)
  •   Chao Zhang

Publication Date


  • 2007

Citation


  • Pilehrood, S., Gao, F., Ma, Z., Xu, W. & Zhang, C. (2007). Negative long wavelength dielectric constant in semiconductor QWs. Physica Status Solidi. C: Current Topics in Solid State Physics, 4 (2), 451-453.

Scopus Eid


  • 2-s2.0-50049109301

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1767

Number Of Pages


  • 2

Start Page


  • 451

End Page


  • 453

Volume


  • 4

Issue


  • 2

Abstract


  • In this work we present an analytical and numerical result of the dielectric function of electronic systems

    with Rashba spin-orbit interaction. By solving the quantum equation of motion for the electron density

    matrix, we obtained the dielectric function in the mean-field approximation. It is shown that when the

    momentum transfer q for an electronic transition is smaller than a critical value characterized by the spinorbit

    interaction, the static dielectric function increases with q, indicating on-set of a new collective state.

Authors


  •   Pilehrood, S Hessami (external author)
  •   Gao, Feng (external author)
  •   Ma, Zhongshui (external author)
  •   Xu, Wen (external author)
  •   Chao Zhang

Publication Date


  • 2007

Citation


  • Pilehrood, S., Gao, F., Ma, Z., Xu, W. & Zhang, C. (2007). Negative long wavelength dielectric constant in semiconductor QWs. Physica Status Solidi. C: Current Topics in Solid State Physics, 4 (2), 451-453.

Scopus Eid


  • 2-s2.0-50049109301

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1767

Number Of Pages


  • 2

Start Page


  • 451

End Page


  • 453

Volume


  • 4

Issue


  • 2