Room-temperature ferromagnetism in Cu-doped ZnO thin films
- 16 August 2005
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 87 (8), 082504
- https://doi.org/10.1063/1.2032588
Abstract
A series of copper-doped zinc oxide films were grown by pulsed-laser ablation. Films grown under conditions that produced -type ZnO were nonmagnetic while those grown under conditions that produced -type were ferromagnetic with a Curie temperature above 350 K. The magnetic moment per copper atom decreased as the copper concentration increased. An explanation for this result is proposed based on the distance between nearest-neighbor copper atoms.
Keywords
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