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Magnetoresistance in a hybrid ferromagnetic/semiconductor device

Author:
Papp, G.   Peeters, F. M.  


Journal:
Journal of Applied Physics


Issue Date:
2010


Abstract(summary):

Ballistic transport of a two-dimensional electron gas (2DEG) in a rectangle shaped wire, subjected to a local nonhomogeneous magnetic field that results from an in-plane magnetized ferromagnetic (FM) strip deposited above the 2DEG, is investigated theoretically. We found a positive magnetoresistance (MR), which exhibits hysteresis behavior with respect to the direction of the magnetic field sweep, in agreement with a recent experiment. This positive MR can be tuned by applying a gate voltage to the FM strip.


Page:
063718


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