Current-driven switching in a single exchange-biased ferromagnetic layer.
We demonstrate spin-transfer torque effects in a single exchange-biased ferromagnetic layer. A current through a point contact to the exchange-biased Co layer reverses the magnetization of a nanodomain in the layer hysteretically for low applied magnetic fields and reversibly for high fields (up to 9 T). These effects are the inverse of the domain wall magnetoresistance, in the same way that similar effects in multilayers are the inverse of giant magnetoresistance.
Chen
T Y
TY
Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA.
Ji
Y
Y
Chien
C L
CL
Stiles
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MD