Spin-Transfer-Torque in Antiferromagnets: A Brief Review

PAPER: J. Bass, A. Sharma, Z. Wei, and M. Tsoi,

“Studies of Effects of Current on Exchange-Bias: A Brief Review”,

Journal of Magnetics 13(1), 1-6 (2008)

PREPRINT: J. Bass, A. Sharma, Z. Wei, and M. Tsoi,

“Studies of Effects of Current on Exchange-Bias: A Brief Review”,

arXiv:0804.3358

ABSTRACT:

MacDonald and co-workers recently predicted that high current densities could affect the magnetic order of antiferromagnetic (AFM) multilayers, in ways similar to those that occur in ferromagnetic (F) multilayers, and that changes in AFM magnetic order can produce an antiferromagnetic Giant Magnetoresistance (AGMR). Four groups have now studied current-driven effects on exchange bias at F/AFM interfaces. In this paper, we first briefly review the main predictions by MacDonald and co-workers, and then the results of experiments on exchange bias that these predictions stimulated.

This work was supported in part by NSF Grants DMR-05-01013 and DMR-06-45377