Conductive and ferromagnetic contributions of H in ZnCoO using H-2 hot isostatic pressure

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For highly H injected ZnCoO achieved by simultaneous high pressure (1000 bar) and annealing using a hot isostatic pressure (HIP), we report electrical and magnetic properties with first-principles calculation results. The HIP process increased the carrier concentration by similar to 10(3) times and restored the conductivity up to that of H injected ZnO. Interestingly, with maintaining high conductivity, the extended HIP processing time significantly enhanced the short-ranged spin orderings of Co-H-Co complexes. Based on the experimental and theoretical results, we proposed the explanation for the relation magnetic characteristics and the behavior of hydrogen triggering spin ordering for spintronic applications.
Publisher
AMER INST PHYSICS
Issue Date
2012-03
Language
English
Article Type
Article
Keywords

INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; ZINC-OXIDE; BASIS-SET; HYDROGEN; SEMICONDUCTOR; METALS; ZNO

Citation

APPLIED PHYSICS LETTERS, v.100, no.11

ISSN
0003-6951
DOI
10.1063/1.3694040
URI
http://hdl.handle.net/10203/228684
Appears in Collection
NT-Journal Papers(저널논문)
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