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

Abstract

We study current-induced switching in magnetic tunnel junctions (MTJs) 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 $a_J$ and $b_J$, respectively. At finite temperatures, $\sigma =b_J/a_J=\pm 1$ leads to a smaller mean switching time compared that with $\sigma =0$. The reduction of switching time in the presence of the field-like term is due to the alignment effect (for $\sigma >0$) and the initial torque effect.

arXiv comment5 pages, 4 figures

References in corpus (7)

• Measurement of the Spin-Transfer-Torque Vector in Magnetic Tunnel Junctions
• Anomalous Bias Dependence of Spin Torque in Magnetic Tunnel Junctions
• Spin Torques in Ferromagnetic/Normal Metal Structures
• Boltzmann Test of Slonczewski's Theory of Spin Transfer Torque
• Switching Distributions for Perpendicular Spin-Torque Devices within the Macrospin Approximation
• Zero Field precession and hysteretic threshold currents in spin torque oscillators with tilted polarizer
• Current-Induced Effective Magnetic Fields in Co/Cu/Co Nanopillars

Cited by in corpus (3)

• Field- and damping-like spin-transfer torque in magnetic multilayers
• Spin-orbit torque: Moving towards two-dimensional van der Waals heterostructures
• In-plane dominant anisotropy stochastic magnetic tunnel junction for probabilistic computing: A Fokker-Planck study