Superfluidity of zero-point vacancies in two-dimensional solid helium-4
| Project/Area Number |
21740264
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Muroran Institute of Technology (2012)
Keio University (2009-2011) |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 超低温・量子凝縮系 / 超流動 / 固体の超流動 / 2次元ヘリウム4 / 量子固体 / 非古典的回転慣性 / ねじれ振り子 / ボース凝縮 / 零点空格子 / 2次元固体 / ねじれ振り子法 / 量子液体 |
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| Research Abstract |
In order to investigate the novel superfluidity of the two-dimensional (2D) registered phase of 4^He on graphite and zero-point vacancies in bosonic quantum crystals, areal density dependence and critical velocity of non-classical rotational inertia (NCRI) in 4He films adsorbed on Grafoil were performed by a torsional oscillator method. I obtained the phase diagram of 2D 4He and discovered a finite NCRI appeared in only vicinity of the registered phase.
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Report
(5 results)
Research Products
(30 results)
