Patent ID: 8443318

Claim:
A method for modeling a magnetic tunnel junction with spin-polarized current writing, said magnetic tunnel junction comprising a stack of at least two magnetic layers separated by an insulating layer, a first magnetic layer and a second magnetic layer, magnetization of the first magnetic layer being described by a uniform magnetic moment, dynamic behavior of the magnetic tunnel junction being modeled by an equivalent electrical circuit comprising at least two coupled parts, the method comprising: providing, by a computer processor, a first part representing the stack of at least two magnetic layers, through which a current flows corresponding to the spin-polarized current flowing through said stack of at least two magnetic layers, whose resistance across its terminals depends on three voltages representing three dimensions of magnetic moment along three axes, modeling a tunnel effect; providing, by the computer processor, a second part representing a behavior of the magnetic moment, comprising three circuits each representing a dimension of the magnetic moment by the three voltages, each of the three voltages depending on voltages in the other dimensions and on voltage across the terminals of the stack of at least two magnetic layers, modeling a torque effect exerted by the spin-polarized current on the magnetization of the first layer.