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Nanofabrication of spin-transfer torque devices by a polymethylmethacrylate mask one step process: Giant magnetoresistance versus single layer devices

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4 Author(s)
Parge, Anne ; IV. Physikalisches Institut, Universität Göttingen, 37077 Goettingen, Germany ; Niermann, Tore ; Seibt, Michael ; Munzenberg, Markus

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We present a method to prepare magnetic spin torque devices of low specific resistance in a one step lithography process. The quality of the pillar devices is demonstrated for a standard magnetic double layer device. For single layer devices, we found hysteretic switching and a more complex dynamical excitation pattern in higher fields. A simple model to explain the resistance spikes is presented.

Published in:

Journal of Applied Physics  (Volume:101 ,  Issue: 10 )