Single-shot time-resolved measurements of nanosecond-scale spin-transfer induced switching: Stochastic versus deterministic aspects

T. Devolder, J. Hayakawa, K. Ito, H. Takahashi, S. Ikeda, P. Crozat, N. Zerounian, Joo Von Kim, C. Chappert, H. Ohno

Research output: Contribution to journalArticlepeer-review

179 Citations (Scopus)

Abstract

Using high bandwidth resistance measurements, we study the single-shot response of tunnel junctions subjected to spin torque pulses. After the pulse onset, the switching proceeds by a ns-scale incubation delay during which the resistance is quiet, followed by a 400 ps transition terminated by a large ringing that is damped progressively. While the incubation delay fluctuates significantly, the resistance traces are reproducible once this delay is passed. After switching, the time-resolved resistance traces indicate micromagnetic configurations that are rather spatially coherent.

Original languageEnglish
Article number057206
JournalPhysical Review Letters
Volume100
Issue number5
DOIs
Publication statusPublished - 2008 Feb 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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