Model for ballistic spin-transport in ferromagnet/two-dimensional electron gas/ferromagnet structures

Th Schäpers, J. Nitta, H. B. Heersche, H. Takayanagi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The spin dependent conductance of a ferromagnet/two-dimensional electron gas/ferromagnet structure is theoretically examined in the ballistic transport regime. It is shown that the spin signal can be improved considerably by making use of the spin filtering effect of a barrier at the ferromagnet/two-dimensional electron gas interface. For sufficiently short semiconductor layers interference effects can result in an additional increase of the spin signal.

Original languageEnglish
Pages (from-to)564-567
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume13
Issue number2-4
DOIs
Publication statusPublished - 2002 Mar
Externally publishedYes

Keywords

  • Electron interference
  • Interface barrier
  • Spin injection
  • Two-dimensional electron gas

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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