Magnetic anisotropy of Co2+ as signature of intrinsic ferromagnetism in ZnO:Co.

P, Sati; R, Hayn; R, Kuzian; S, Régnier; S, Schäfer; A, Stepanov; C, Morhain; C, Deparis; M, Laügt; M, Goiran; Z, Golacki

doi:10.1103/physrevlett.96.017203

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Magnetic anisotropy of Co2+ as signature of intrinsic ferromagnetism in ZnO:Co.

Shared by NobleBlocks on Jan 4, 2006 • 12:00 AM UTC

Authors:

Sati P

Hayn R

Kuzian R

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...

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