2013 Fiscal Year Final Research Report
Theoretical studies of the novel magnetic orders emergent from quantum spin liquids
| Project/Area Number |
21540379
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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 |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Saitama University |
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Principal Investigator |
HIDA Kazuo 埼玉大学, 理工学研究科, 教授 (20133704)
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| Project Period (FY) |
2009-04-01 – 2014-03-31
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| Keywords | 量子スピン系 / 量子スピン液体 / トポロジカル相 / ダイヤモンド鎖 / スピン梯子・チューブ / フラストレーション / フェリ磁性 / スピングラス |
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| Research Abstract |
In the low dimensional magnets, various topologically different quantum spin fluid phases, novel types of ordered phases emergent from them, and the quantum phase transitions between these phases are induced by the interplay of frustration, randomness, quantum effects, and spatial variation of the spin magnitudes and interactions. We have clarified their nature using the computational methods such as numerical exact diagonalization, density matrix renormalization group, and Monte Carlo method in addition to the analytical methods such as exact solution, low energy effective theory, and modified spin wave method.
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