Switching by point-contact spin injection in a continuous film

T. Y. Chen, Y. Ji, C. L. Chien

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

The observation of current-driven switching by pin-contact spin injection in a continuous Co/Cu/Co film was discussed. Writing and reversible switching of sub-100 nm magnetic elements by spin injection through a metal tip at low temperature and at room temperature (RT) were demonstrated. It was shown that the experimental setup had a Cu tip in contact with the Nb/Co/Cu/Au multilayer and the electrical contacts. The result suggest that the magnetic states written depend on the polarity of the injection currents, and remain stable at room temperature. It was also found that a spin-polarized current from a metal tip can reversibly write a magnetic bit in a continuous magnetic thin film.

Original languageEnglish (US)
Pages (from-to)380-382
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number3
DOIs
StatePublished - Jan 19 2004

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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