Journal
ADVANCED MATERIALS
Volume 19, Issue 19, Pages 2925-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200602215
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Funding
- EPSRC [EP/D039894/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/D039894/1] Funding Source: researchfish
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Post-annealing studies in different atmospheres combined with high resolution x-ray studies on epitaxial ZnO and Zn1-xCoxO films revealed that the c-axis lattice parameter decreases when interstitial zinc is removed from ZnO. The 'c' parameter change reverses sign when samples are re-annealed in a Zn-rich atmosphere. Stronger ferromagnetism occurs in Zn1-xCoxO film for higher 'c' parameters and hence higher Zn interstitial concentrations.
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