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Giant magnetoresistance induced by magnetic barriers

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9 Author(s)
Kubrak, V. ; Sch. of Phys. & Astron., Nottingham Univ., UK ; Edmonds, K.W. ; Neumann, A.C. ; Gallagher, B.L.
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We present experimental results for hybrid ferromagnet/semiconductor devices in which 2D electrons propagate through sub-micron width magnetic barriers. Magnetoresistances, MR, of ~1000% are found at low temperatures and ~1% at room temperature. We compared the measured behavior with numerical calculations and give the conditions needed to achieve large room temperature MR

Published in:

Magnetics, IEEE Transactions on  (Volume:37 ,  Issue: 4 )

Date of Publication:

Jul 2001

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