Chapter — Introduction to spin transfer torque

C. Baraduc, M. Chshiev, U. Ebels, in Nanomagnetism and spintronics : fabrication, materials, characterization and applications, F. Nasirpouri, A. Nogaret Eds., World Scientific, Singapore (2011). ISBN: 9789814273053.


Spin transfer torque corresponds to the interaction of a spin polarized electronic current with the local magnetization: magnetic moment is
transferred from the conduction electrons to the magnetization, resulting in a change of the magnetization orientation.

This chapter introduces the physics of spin transfer torque in magnetic devices. It is meant as a tutorial and provides an elementary discussion of the basic concepts. It is not a review of the extensive theoretical and experimental work done on this subject in these last years.

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