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Comparative Study of Microwave Radiation-Induced Magnetoresistance Oscillations in GaAs/AlGaAs Devices

We examine the inverse magnetic field periodic, radiation-induced magnetoresistance oscillations in GaAs/AlGaAs heterostructures prepared in W. Wegscheider's group, compare their characteristics with similar oscillations in V. Umansky's material, and describe the lineshape variation versus the radiation power P in the two systems. We find that there is a good consistency between the results obtained in the different material.