Abstract
The energy spectrum and states of an electron in a non-magnetic/magnetic heterostructureplaced between two materials (e.g. oxides) acting as barriers is studied in thepresence of a magnetic field perpendicular or parallel to the well. A potential stepis formed at the interface between the non-magnetic and magnetic material inthe presence of a magnetic field since spin-up electrons see a barrier whereasthe spin-down ones see a well. A rich band structure is obtained which can betuned by a perpendicular electric field. Numerical results are presented for aZnSe/Zn1−xMnxSe heterostructure and their pertinence to spin-polarized transport is pointed out.
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