Current-induced switching of magnetic tunnel junctions : Effects of field-like spin-transfer torque, pinned-layer magnetization orientation, and temperature

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Article number022413
Journal / PublicationApplied Physics Letters
Volume104
Issue number2
Publication statusPublished - 13 Jan 2014
Externally publishedYes

Abstract

We study current-induced switching in magnetic tunnel junctions in the presence of a field-like spin-transfer torque and titled pinned-layer magnetization in the high current limit at finite temperature. We consider both the Slonczewski and field-like torques with coefficients aJ and bJ, respectively. At finite temperatures, σ=b/aJ=±1 leads to a smaller mean switching time compared that with σ=0. The reduction of switching time in the presence of the field-like term is due to the alignment effect (for σ>0) and the initial torque effect.

Citation Format(s)

Current-induced switching of magnetic tunnel junctions : Effects of field-like spin-transfer torque, pinned-layer magnetization orientation, and temperature. / Tiwari, R. K.; Jhon, M. H.; Ng, N.; Srolovitz, D. J.; Gan, C. K.

In: Applied Physics Letters, Vol. 104, No. 2, 022413, 13.01.2014.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review