期刊
JOURNAL OF APPLIED PHYSICS
卷 112, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4767379
关键词
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资金
- DFG [AL 560/13-1]
- LOEWE-Centre AdRIA
We have conducted a detailed thin film growth structure of oxygen engineered monoclinic HfO2 +/- x grown by reactive molecular beam epitaxy. The oxidation conditions induce a switching between ((1) over bar 11) and (002) texture of hafnium oxide. The band gap of oxygen deficient hafnia decreases with increasing amount of oxygen vacancies by more than 1 eV. For high oxygen vacancy concentrations, defect bands form inside the band gap that induce optical transitions and p-type conductivity. The resistivity changes by several orders of magnitude as a function of oxidation conditions. Oxygen vacancies do not give rise to ferromagnetic behavior. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4767379]
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