Magneto conductance for tunnelling through double magnetic barriers

G. Papp, P. M. Peeters

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The temperature-dependent magnetoresistance effect is investigated in a magnetically modulated two-dimensional (2D) electron gas (2DEG) which can be realized by depositing two parallel ferromagnets on top of a 2DEG electron gas. In the resonant tunnelling regime the transmission for the parallel and antiparallel magnetization configurations shows a quite distinct dependence on the longitudinal wave vector of the incident electrons. This leads to a very large magneto resistance ratio with a strong temperature dependence.

Original languageEnglish
Pages (from-to)339-346
Number of pages8
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume25
Issue number4
DOIs
Publication statusPublished - Jan 1 2005

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Keywords

  • Giant magnetoresistance
  • Magnetic barriers
  • Resonant tunnelling

ASJC Scopus subject areas

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

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