Dynamic magnetic intermediate state during nanosecond spin transfer switching for MgO-based magnetic tunnel junctions

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5 Citations (Scopus)

Abstract

We report for the first time that the dynamic magnetic intermediate state (DMI) was observed at a speed of several ns during spin transfer switching for MgO-based magnetic tunnel junctions (MTJs). The DMI was observed as slow resistance oscillation at the center of the parallel to anti-parallel state by single shot time domain measurements. The DMI is observable at certain current amplitudes. The outbreak probability decreases with further current increase. We concluded that the DMI originates from inhomogeneous magnetization behavior. On the other hand, previous single shot time domain measurements have shown only for single-domain-like magnetization behavior.

Original languageEnglish
Article number053002
JournalApplied Physics Express
Volume3
Issue number5
DOIs
Publication statusPublished - 2010 May 1

ASJC Scopus subject areas

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

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