Journal
ADVANCED MATERIALS
Volume 16, Issue 23-24, Pages 2115-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200400456
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Reversible 300 K ferromagnetic ordering in a diluted magnetic semiconductor. Co2+:ZnO, is achieved by lattice incorporation and removal of the native n-type defect, interstitial Zn, resulting in off and on states (Figure. red triangles and blue circles). Spectroscopic and magnetic data implicate a double-exchange mechanism for ferromagnetism. These results suggest new opportunities for integrating, magnetism and conductivity in semiconductor sensor or spin-based electronics devices.
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