Magnetic Anisotropy of Co2+ as Signature of Intrinsic Ferromagnetism in ZnO∶Co

Sati, P.; Hayn, R.; O. Kuzian, R.; Régnier, S.; Schäfer, Steffen; Stepanov, A.; Morhain, C.; Deparis, C.; Laügt, M.; Goiran, M.; Gołacki, Z.

doi:10.1103/physrevlett.96.017203

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Magnetic Anisotropy of Co2+ as Signature of Intrinsic Ferromagnetism in ZnO∶Co

Published in Physical Review Letters • Jan 4, 2006

Authors:

P. Sati

R. Hayn

R. O. Kuzian

Abstract

We report on the magnetic properties of thoroughly characterized Zn(1-x)Co(x)O epitaxial thin films, with low Co concentration, x = 0.003-0.005. Magnetic and EPR measurements, combined with crystal field theory, reveal that isolated Co2+ ions in ZnO possess a strong single ion anisotropy which leads...

Subject

Ferromagnetism

Anisotropy

Materials science

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