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Effect of edge transmission and elastic scattering on the resistance of magnetic barriers | | M. Cerchez
; S. Hugger
; T. Heinzel
; N. Schulz
; | | Date: |
5 Jan 2007 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | | Abstract: | Strong magnetic barriers are defined in two-dimensional electron gases by magnetizing dysprosium ferromagnetic platelets on top of a Ga[Al]As heterostructure. A small resistance across the barrier is observed even deep inside the closed regime. We have used semiclassical simulations to explain this behavior quantitatively in terms of a combined effect of elastic electron scattering inside the barrier region and E x B drift at the intersection of the magnetic barrier with the edge of the Hall bar. | | Source: | arXiv, cond-mat/0701109 | | Services: | Forum | Review | PDF | Favorites | |
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