Keywords
chalcopyrite
cobalt.
CuInSe2
diluted magnetic semiconductors
ferromagnetism
Abstract
Synthetic conditions for cobalt-doped chalcopyrites Cu1 - x/2In1 - x/2CoxSe2 were modified by adding a stage of fast temperature quenching from 1000 °C to cause significant ferromagnetism. Ferromagnetism persisted even at room temperature, and it was characterized by coercivity up to 140 Oe.
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