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Macrospin Simulation Attempt

Macrospin Simulation Attempt. Simulation parameters. Ms=713000 A/m=485*12/16+1400*4/16=Average of Ms from Co and Ni K=3.55e5 J/m3 Anisotropy constant Thickness 1.6nm Area 100nmx100nm => Hk =100-101mT Use damping=0.02, reasonable value. Matching of current sweep.

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Macrospin Simulation Attempt

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  1. Macrospin Simulation Attempt

  2. Simulation parameters • Ms=713000 A/m=485*12/16+1400*4/16=Average of Ms from Co and Ni • K=3.55e5 J/m3 Anisotropy constant • Thickness 1.6nmArea 100nmx100nm • =>Hk=100-101mT • Use damping=0.02, reasonable value.

  3. Matching of current sweep • 0 Field Current sweep: 3.17mA,-7mA • ~0.02 dipolar field (extracted from asymetry of the hyst loop • -0.02 field current sweep : 4.4mA, -6.4mA • -0.02 field Extrapolated Ic=4.33mA • Change to asymetricsloncweski torque so that AP->P is 6.4/4.4 times more efficient than P->AP

  4. 800000 • 4.42

  5. Simulation parameters: • Factor of 60 with change in torque shape (4.4,6.4)=>4.42sim

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