2011 Fiscal Year Final Research Report
Research on Ground State and Phase Transition of Quantum Spin System in Rare Earth Compound
| Project/Area Number |
20340083
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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 | Tohoku University |
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Principal Investigator |
OCHIAI Akira 東北大学, 大学院・理学研究科, 教授 (90183772)
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| Co-Investigator(Kenkyū-buntansha) |
AOKI Haruyoshi 東北大学, 大学院・理学研究科, 教授 (60302246)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 磁性 / 量子スピン系 / 希土類化合物 / 幾何学的フラストレーション / 強相関電子系 |
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| Research Abstract |
The 4f-electron quantum spin system, which is an admixture of orbital and spin states being different from a pure spin state of the d-electron quantum spin system, is not fully understood yet. In this project, novel quantum states, such as . TlnT behavior in the specific heat of YbAl3C3, were found by exploring the field-response of the 4f-electron quantum spin system. These anomalous behaviors may be relevant to the characteristic nature of the 4f-electron quantum spin system
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