Abstract
We report on the experiments of magnetotransport measurements of two-dimensional electron systems in random magnetic fields having several amplitudes with zero mean. The random magnetic field is produced by placing small ferromagnetic disks quasi-randomly onto the surface of the gate electrode of GaAs/AlGaAs heterostructures. We obtain the amplitude dependence and the electron density dependence of the magnetoresistance and the results indicate that electron transport in the present system is dominated by scattering duo to random magnetic fields.
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