2002/08/01 by K. Ando, Ando, K.
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/0208010
6 pages, 8 figures, 7th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS) Dec.17-18, 2001, Yokohama
arxiv created 2002/08/01 · arxiv updated 2009/11/30
Magneto-optical properties of ZnO:Co and ZnO:Ni films were measured. Magnetization measurements show that some of the films are paramagnetic and others are ferromagnetic. Magnetic circular dichroism clarified that Zn1-xCoxO and Zn1-xNixO included in samples are paramagnetic diluted magnetic semiconductors. Ferromagnetic precipitations seem to be responsible for the observed ferromagnetic behaviors. Criteria to judge the ferromagnetic DMS are also discussed.