Non-magnetic Replacement and Ballistic Thermal Conductivity in Frastrated Quantum Spin System of 2-dimensional Quantum Solid
Project/Area Number |
23540401
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Condensed matter physics II
|
Research Institution | University of Tsukuba |
Principal Investigator |
|
Co-Investigator(Kenkyū-buntansha) |
TAKAGI Takeo 福井大学, 工学研究科, 教授 (00266723)
高木 丈夫 福井大学, 工学(系)研究科(研究院), 教授 (00206723)
|
Project Period (FY) |
2011-04-28 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
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 / 単原子層膜 / 低次元 / ヘリウム薄膜 / 熱容量 / 吸着構造 / domain wall / Dirac粒子系 / 2次元 / 量子固体 / 熱伝導 / 2次元 / 量子スピン / 三角格子 / カゴメ格子 / バリスティック |
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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Report
(5 results)
Research Products
(12 results)