2013 Fiscal Year Final Research Report
How magnetism will change when the dimension of sample changes
| Project/Area Number |
23540432
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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 |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Ehime University |
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Principal Investigator |
NAITO Toshio 愛媛大学, 理工学研究科, 教授 (20227713)
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| Co-Investigator(Renkei-kenkyūsha) |
MAYAMA Hiroyuki 北海道大学, 電子科学研究所, 助教 (70360948)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 物性基礎論 / フラクタル |
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| Research Abstract |
The purpose of this research project is to clarify the relationship between fractal dimension (D) and ordering in cooperative phenomena such as magnetic and superconducting transitions by presenting experimental data. The novelty of this research lies in the realization of control of D of given samples and elucidation of their electronic properties. For three years the study has achieved most of the purposes. The followings have been clarified by measurements of the physical properties of samples with various farctal dimensions; the relationship between Neel temperature of CoO and its fractal dimension, and that between critical current density of high-T_C copper oxide superconductors and its fractal dimension. These results are published in scientific journals after patent was applied.
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