Melting of Solid 4He by Ultrasound at 1.2 K

被引：0
|
作者：
R. Nomura
M. Maekawa
Y. Suzuki
Y. Okumura
Y. Okuda
机构：
[1] Department of Condensed Matter Physics,
[2] Graduate School of Science and Engineering,undefined
[3] Tokyo Institute of Technology,undefined
[4] 2-12-1,undefined
[5] Heguro-ku,undefined
[6] Tokyo,undefined
[7] 152-8551,undefined
来源：
Journal of Low Temperature Physics | 2002年 / 126卷
关键词：
Rough Surface; Magnetic Material; Measurement System; Sound Wave; Height Measurement;
D O I：
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中图分类号：
学科分类号：
摘要：
We observed the melting of solid 4He in superfluid when the sound waves were injected to its rough surface at 1.2 K. Single crystal was grown between two transducers and ultrasound pulses were applied normally to the solid-liquid interface from solid side or liquid side. Amount of melting was on the same order in both cases. We developed surface height measurement system using the sound wave itself and measured the amount of melting by changing the sound power and the number of pulses.
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页码：39 / 44
页数：5
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