Abstract
Using nanolithographic techniques we deposit an array of ferromagnetic dysprosium dots with period a=500 nm on top of GaAs�AlGaAs heterojunctions. The spatially periodic stray fields affect drastically the magnetotransport properties of the electrons in the underlying two-dimensional electron gas and give rise to the long predicted magnetic commensurability oscillations. We show that ...
Abstract
Using nanolithographic techniques we deposit an array of ferromagnetic dysprosium dots with period a=500 nm on top of GaAs�AlGaAs heterojunctions. The spatially periodic stray fields affect drastically the magnetotransport properties of the electrons in the underlying two-dimensional electron gas and give rise to the long predicted magnetic commensurability oscillations. We show that such a semiconductor-ferromagnet hybrid system can be used to study the magnetic properties of nanoscale particles.