Current-controlled magnetization dynamics in the spin-flip transistor

Xuhui Wang, Gerrit E.W. Bauer, Teruo Ono

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The current driven magnetization dynamics of a thin-film, three magnetic terminal device (spin-flip transistor) is investigated theoretically. We consider a magnetization configuration in which all magnetizations are in the device plane, with source-drain magnetizations chosen fixed and antiparallel, whereas the third contact magnetization is allowed to move in a weak anisotropy field that guarantees thermal stability of the equilibrium structure at room temperature. We analyze the magnetization dynamics of the free layer under a dc source-drain bias current within the macrospin model and magneto-electronic circuit theory. A new tunable two-state behavior of the magnetization is found and the advantages of this phenomenon and potential applications are discussed.

Original languageEnglish
Pages (from-to)3863-3868
Number of pages6
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number5 A
DOIs
Publication statusPublished - 2006 May 9
Externally publishedYes

Keywords

  • Circuit theory
  • Magnetization dynamics
  • Spin transfer torque

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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