Liu Yao-Wen et al 2005 Chinese Phys. Lett. 22 1270 doi:10.1088/0256-307X/22/5/069
Liu Yao-Wen1, Chen Yu-Guang1, Yang Ya-Ping1, Chen Hong1 and Martins J. L.2
Show affiliationsAn effective three-dimensional micromagnetic method for predicting equilibrium configuration of magnetization states is presented with conjugate-gradient technique to minimize the total energy, which has a much faster convergence rate than that of the quasi-Newton method. As an application, magnetic tunnel junctions with pinholes in the ultrathin barrier are simulated. The calculated coupling field Hf increases with the pinhole density increase, corresponding to the decrease of barrier thickness. The free layer domain configuration of tunnel junction during the switching process is also demonstrated.
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
Issue 5 (May 2005)
Received 9 November 2004
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