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Electrons in mesoscopically inhomogeneous magnetic fields

Ye, P. ; Weiss, Dieter ; Gerhardts, R. ; Lütjering, G. ; Klitzing, K. ; Nickel, H.


We investigated the low-field magnetoresistivity of a two-dimensional electron gas (2DEG) underneath microstructured ferromagnetic gratings. The strength and the direction of an externally applied magnetic field determines the strength and the shape of the micromagnet\'s stray field. Commensurability effects due to the imposed periodic magnetic field are in competition with similar ...


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