Itinerant electron nanomagnetism -Photoinduced magnetism accompanied by itinerant electrons-
| Project/Area Number |
20540327
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Hokkaido University |
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Principal Investigator |
YAMAMOTO Shoji 北海道大学, 大学院・理学研究院, 教授 (90252551)
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| Project Period (FY) |
2008 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 遷移金属錯体 / 芳香族有機高分子 / 単分子磁石 / 電化密度波 / 光誘起相転移 / 遍歴電子磁性 / 群論 / 核スピン-格子緩和 / 光磁性体 / モリブデン錯体 / 磁化ダイナミクス / 時間依存HF法 / NMR / 磁性 / 光物性 / ハロゲン架橋遷移金属錯体 / ナノチューブ / ポリアセン / シアノ架橋銅モリブデン化合物 / 光誘起磁性 / 時間依存ハートリィ・フォック法 / クラスター磁性体 |
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| Research Abstract |
We have theoretically characterized nanotubular halogen-bridged platinum complexes in cooperation with experimental research groups. Half-metallic charge-density-wave states as well as novel mixed-valent ground states were revealed. We have found out photoinduced phase transitions of one-way aspect in polyacene, which consists of linearly fused benzene rings. Strucural isomers of the so-called cis and trans types are energetically degenerate but optically distinguishable and therefore the present findings may open a way to a brandnew photochromic device. We have further constructed a nuclear-magnetic-relaxation theory for the field-induced level crossings in single-molecular ring antiferromagnets. Novel NMR observations in octanuclear chromic wheels were theoretically solved.
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Report
(6 results)
Research Products
(52 results)
