Competition between slippage and superfluidity of^4He Films
| Project/Area Number |
20540351
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | The University of Electro-Communications |
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Principal Investigator |
SUZUKI Masaru 電気通信大学, 情報理工学研究科, 教授 (20196869)
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| Co-Investigator(Kenkyū-buntansha) |
MINOGUCHI Tomoki 東京大学, 大学院・総合文化研究科 (10202350)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | ^4He / 吸着膜 / 超流動 / 固相膜すべり / QCM / He吸着膜 / 固相膜 / グラファイト / 界面摩 / 滑り運動 / 界面摩擦 |
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| Research Abstract |
In order to clarify the mechanism of the competition between slippage and super fluidity of 4He films, we carried out QCM measurements under different conditions from the previous 5 MHz-QCM experiments. In 32 kHz-QCM experiments, we observed the competition under the condition when the acceleration of oscillating substrate is much the same as the previous experiments. This suggests that the effective force acting on the film plays an important role in sliding solid 4He films, and supports the sliding model which was proposed by Minoguchi.
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Report
(4 results)
Research Products
(35 results)
