2017 Fiscal Year Final Research Report
Resaerch for Excitonic Insulators
| Project/Area Number |
16K13835
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics II
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| Research Institution | Nagoya University |
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Principal Investigator |
Itoh Masayuki 名古屋大学, 理学研究科, 教授 (90176363)
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| Co-Investigator(Kenkyū-buntansha) |
小林 義明 名古屋大学, 理学研究科, 准教授 (60262846)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | 励起子絶縁体 / 励起子凝縮 / 核磁気共鳴 / 核スピン格子緩和率 / 軌道反磁性帯磁率 / スピン帯磁率 / ニッケル化合物 / チタン化合物 |
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| Outline of Final Research Achievements |
An excitonic insulator is a novel insulator driven by the exciton condensation. We have nuclear magnetic resonance (NMR) measurements to probe the exciton condensation. For a candidate of the excitonic insulator Ta2NiSe5, we observed the characteristic temperature dependences of the Se nuclear spin-lattice relaxation rate and the local magnetic susceptibility coming from the exciton condensation. Thus NMR is concluded to be a useful probe to study the excition condensation in excitonic insulators.
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| Free Research Field |
強相関電子系物理学
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