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1 Sample characterization. a Schematic device architecture and geometry of the cw experiment. b Schematic presentation of the band diagram at U = 0, where EV and EC denote the valence and conduction bands, respectively, and EF indicates the Fermi level. c Current–voltage characteristics I(U) under excitation with laser light in cw mode.
In the paper, co-authored by Tomasz Wojtowicz, group leader at MagTop, the authors describe the electrical control of exchange coupling in a ferromagnet-semiconductor quantum well hybrid structure.