2010 Fiscal Year Final Research Report
Theoretical and numerical study on anomalous quantum phenomena in the spin nanotubes
| Project/Area Number |
20340096
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | University of Hyogo (2009-2010)
Japan Atomic Energy Agency (2008) |
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Principal Investigator |
SAKAI Toru 兵庫県立大学, 大学院・物質理学研究科, 教授 (60235116)
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| Co-Investigator(Kenkyū-buntansha) |
NAKANO Hiroki 兵庫県立大学, 大学院・物質理学研究科, 助教 (00343418)
NOMURA Takuji 日本原子力研究開発機構, 量子ビーム応用研究部門, 副主任研究員 (90373240)
SEO Hitoshi 理化学研究所, 基幹研究所, 専任研究員 (30415054)
TONEGAWA Takashi 神戸大学, 理学部, 名誉教授 (80028167)
OKAMOTO Kiyomi 東京工業大学, 大学院・理工学研究科, 助教 (10114860)
OKUNISHI Kouichi 新潟大学, 自然科学系, 准教授
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| Co-Investigator(Renkei-kenkyūsha) |
SATO Masahiro 青山学院大学, 理工学部, 助教 (90425570)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 磁性 / 量子スピン系 / ナノチューブ / カイラリティ |
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| Research Abstract |
The S=1/2 three-leg spin nanotube was investigated theoretically using the numerical diagonalization and the density matrix renormalization group calculation. It was found that this system exhibits a quantum phase transition characterized by the spin gap with respect to the lattice distortion of each unit cell from the regular to isosceles triangle.
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