2013 Fiscal Year Final Research Report
Study on crystalline growth of phase transition oxides with various oxidation states and their electric transport characteristics
| Project/Area Number |
23560013
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | Tokai University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 相転移酸化物 / バナジウム酸化物 / 絶縁体金属転移 / マグネリ相 / 結晶成長 / 薄膜堆積 / 相共存 / アニール効果 |
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| Research Abstract |
In this project, we studied vanadium dioxide (VO2) with insulator-metal transition (IMT) and related oxide phases which possess different oxidation states such as VnO2n-1 and VnO2n+1. By using mass flow controller which enabled fine control of oxygen partial pressure, we successfully fabricated crystalline V2O3 films on sapphire and silicon substrates. Obtained V2O3 films transformed to VnO2n-1 and VnO2n+1 phases by post-annealing in oxygen atmosphere with adequate temperature and time. Through the study, electrical transport characteristics of VnO2n-1 and VnO2n+1 were partially clarified and the significance of phase coexistence in vanadium oxide thin films was shown.
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Research Products
(33 results)
