2014 Fiscal Year Final Research Report
Non-magnetic Replacement and Ballistic Thermal Conductivity in Frastrated Quantum Spin System of 2-dimensional Quantum Solid
| Project/Area Number |
23540401
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
TAKAGI Takeo 福井大学, 工学研究科, 教授 (00266723)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Keywords | ヘリウム / 薄膜 / グラファイト / 朝永-Luttinger液体 / Dirac粒子 / 低次元系 |
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| Outline of Final Research Achievements |
The heat capacity of a small amount of He-3 atoms solved in He-4 films adsorbed on graphite surfaces has been measured.The results strongly suggest that helium atoms only exhibit fluidity inside domain walls. This behavior has not been observed in any other system and is very unusual. Furthermore, He-3 atoms in domain walls are expected to behave as Tomonaga-Luttinger liquid or massless Dirac fermions.
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| Free Research Field |
低温物理学
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