Zusammenfassung
We investigated the low-field magnetoresistance rho xx of a two- dimensional electron gas (2DEG) underneath ferromagnetic and superconducting metallic gratings. The strain due to the different thermal expansion coefficients of the metallic grating and the GaAs-AlGaAs heterojunctions results in a one-dimensional superlattice potential in the plane of the 2DEG. Depending on the aspect ratio ...
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