2016 Fiscal Year Final Research Report
Study on phenomena of freezing of orbital degree of freedom and nano-structure control with ion diffusion
Project/Area Number |
26420681
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Inorganic materials/Physical properties
|
Research Institution | Kyushu Institute of Technology |
Principal Investigator |
Horibe Yoichi 九州工業大学, 大学院工学研究院, 准教授 (80360048)
|
Project Period (FY) |
2014-04-01 – 2017-03-31
|
Keywords | ナノ構造 / 透過型電子顕微鏡 / 電子回折 |
Outline of Final Research Achievements |
Evolution and control factors of checkerboard nano-structure with orbital ordering accompanied by ionic diffusion in Mn-based transition-metal spinel oxides have been investigated by simultaneous observations in real- and reciprocal spaces by transmission electron microscopy. The checkerboard nano-structure in this system is suggested to be consisted under subtle balance between local and long-range strain field, resulting in collapse with large domain size after evolution. Furthermore, the presence of oxygen vacancies is found to play a key role to form the checkerboard nano-structure.
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Free Research Field |
固体物理学
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