Ferromagnetism in dilute magnetic semiconductors and new materials for spintronics


Mn-doped polycrystals and single crystals of CdGeAs/sub 2/ have been synthesized by chemical technology and their semiconducting and magnetic properties were studied. Starting from around 3 mole% and above the Mn-ions begin to occupy the Ge/sup 4+/ sites, the complexes Mn/sup 2+/ +2p with weak bound holes p supply the hh in a valence band. This is confirmed… (More)


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