Ye, P and Weiss, Dieter and Gerhardts, R and Klitzing, K and Eberl, K and Nickel, H and Toxon, C (1995) Strain-induced magnetoresistance oscillations in GaAs-AlGaAs heterojunctions with ferromagnetic and superconducting submicrometer gratings. Semiconductor Science and Technology 10, p. 715.
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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 of the gratings, different harmonics of the potential can be resolved in rho xx. The observed resistance anomalies can be modelled in a simple semiclassical model.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||25 May 2009 15:20|
|Last Modified:||05 Aug 2009 15:57|
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