| Project/Area Number |
26400324
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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 |
Condensed matter physics I
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
Nishino Masamichi 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 主幹研究員 (80391217)
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| Co-Investigator(Kenkyū-buntansha) |
宮下 精二 東京大学, 大学院理学系研究科(理学部), 教授 (10143372)
末元 徹 公益財団法人豊田理化学研究所, フェロー事業部門, フェロー (50134052)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 電子格子相互作用 / 相転移 / 臨界現象 / フラストレーション / 光誘起相転移 / 長距離相互作用 / 弾性相互作用 / 準安定状態 / 緩和過程 |
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| Outline of Final Research Achievements |
It is important to clarify the cooperative effect by the elastic interaction induced by lattice distortion for the mechanism of phase transitions by light irradiation, temperature change, pressure change, etc. in spin-crossover (SC) materials. We showed theoretically that new critical phenomena and new phases can exist in two-dimensional SC systems. We also showed the mechanism which brings divergence-like enhancement by a finite-size effect in a system with a kind of long-range interactions, related to SC systems. We developed a computational method to study the growth of the high spin state after photo-irradiation.
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