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Photon absorption and collective excitations in spintronic superlattices

Journal Article


Abstract


  • We calculate the electron density response

    function of electron-hole multilayer systems in the presence

    of spin-orbit interaction modeled by Rashba terms. It

    is found that the spin-orbit coupling leads to a redistribution

    of the absorption spectral weight between the particlehole

    excitation and the plasmon excitation. The interplay of

    Coulomb interactions and spin-orbit interaction resulted in

    a suppression or enhancement of the optical absorption due

    to plasmons. Our result indicates that the spin-orbit coupling

    can serve as a tuning mechanism for optical

    absorption in spintronics systems.

UOW Authors


  •   Zhang, C
  •   Gao, Feng (external author)
  •   Yang, C H. (external author)

Publication Date


  • 2007

Citation


  • Zhang, C., Gao, F. & Yang, C. (2007). Photon absorption and collective excitations in spintronic superlattices. Journal of Materials Science: Materials in Electronics, 18 (Supplement 1), 87-91.

Scopus Eid


  • 2-s2.0-34547607887

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1768

Number Of Pages


  • 4

Start Page


  • 87

End Page


  • 91

Volume


  • 18

Issue


  • Supplement 1

Abstract


  • We calculate the electron density response

    function of electron-hole multilayer systems in the presence

    of spin-orbit interaction modeled by Rashba terms. It

    is found that the spin-orbit coupling leads to a redistribution

    of the absorption spectral weight between the particlehole

    excitation and the plasmon excitation. The interplay of

    Coulomb interactions and spin-orbit interaction resulted in

    a suppression or enhancement of the optical absorption due

    to plasmons. Our result indicates that the spin-orbit coupling

    can serve as a tuning mechanism for optical

    absorption in spintronics systems.

UOW Authors


  •   Zhang, C
  •   Gao, Feng (external author)
  •   Yang, C H. (external author)

Publication Date


  • 2007

Citation


  • Zhang, C., Gao, F. & Yang, C. (2007). Photon absorption and collective excitations in spintronic superlattices. Journal of Materials Science: Materials in Electronics, 18 (Supplement 1), 87-91.

Scopus Eid


  • 2-s2.0-34547607887

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1768

Number Of Pages


  • 4

Start Page


  • 87

End Page


  • 91

Volume


  • 18

Issue


  • Supplement 1