Numerical analysis of thermally assisted spin-transfer torque magnetization reversal in synthetic ferrimagnetic free layers

J. Shen, M. Shi, T. Tanaka, K. Matsuyama

Research output: Contribution to journalArticle

Abstract

The spin transfer torque magnetization reversal of synthetic ferrimagnetic free layers under pulsed temperature rise was numerically studied by solving the Landau-Lifshitz-Gilbert equation, taking into account the stochastic random fields, the temperature dependence of magnetic parameters, and the spin torque terms. The anti-parallel magnetization configuration was retained at the elevated temperature, due to interlayer dipole coupling. A significant thermal assistance effect, resulting in a 40% reduction in the switching current, was demonstrated during a nanosecond pulsed temperature rise up to 77% of the Curie temperature.

Original languageEnglish
Article number17D718
JournalJournal of Applied Physics
Volume117
Issue number17
DOIs
Publication statusPublished - May 7 2015

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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