Riassunto analitico
The purpose of this thesis is to analyse the time evolution of the characteristic fields of an antiferromagnet, the Néel vector and the magnetization, under the injection of a spin polarised current. As generally a polarised current generates spin torques in a magnetic system, we want to find their expression in an antiferromagnetic model, starting from a microscopic approach. In particular, we compute the spin orbit torque, the spin transfer torque and the Gilbert damping originated by the electron flow. The structure of the torques is found in the case of two model Hamiltonians, in which it is included a Gaussian distributed impurity disorder.
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