Attempt frequency of magnetization in nanomagnets with thin-film geometry

Abstract

Solving the stochastic Landau-Lifshitz-Gilbert equation numerically, we investigate the effect of the potential landscape on the attempt frequency of magnetization in nanomagnets with the thin-film geometry. Numerical estimates of the attempt frequency are analyzed in comparison with theoretical predictions from the Fokker-Planck equation for the Neel-Brown model. It is found that for a nanomagnet with the thin-film geometry, theoretically predicted values for the universal case are in excellent agreement with numerical estimates.

arXiv comment12 pages, 3 figures, PRB accepted

References in corpus (4)

• Measurement of the Spin-Transfer-Torque Vector in Magnetic Tunnel Junctions
• Spin-transfer-driven ferromagnetic resonance of individual nanomagnets
• Direct Investigation of Superparamagnetism in Co Nanoparticle Films
• Thermally activated escape rates of uniaxial spin systems with transverse field

Cited by in corpus (8)

• Thermal fluctuations of magnetic nanoparticles
• Thermally activated switching of perpendicular magnet by spin-orbit spin torque
• Thermal Relaxation Rates of Magnetic Nanoparticles in the Presence of Magnetic Fields and Spin-Transfer Effects
• Local control of ultrafast dynamics in magnetic nanoparticles
• Magnetization reversal driven by low dimensional chaos in a nanoscale ferromagnet
• Mutual control of stochastic switching for two electrically coupled superparamagnetic tunnel junctions
• Pulse-noise approach for classical spin systems
• Uniform and non-uniform thermal switching of magnetic particles