| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2017-10-03 |
| タイトル |
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|
タイトル |
Ultrasound study of the solid-liquid transition and solid-liquid interface of 4He in aerogels |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| ID登録 |
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|
ID登録 |
10.24517/00011021 |
|
ID登録タイプ |
JaLC |
| 著者 |
Matsumoto, Koichi
Tsuboya, Hiroyuki
Yoshino, Keiichi
Abe, Satoshi
Tsujii, Hiroyuki
Suzuki, Haruhiko
|
| 著者別表示 |
松本, 宏一
阿部, 聡
辻井, 宏之
鈴木, 治彦
|
| 提供者所属 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
金沢大学理工研究域数物科学系 |
| 書誌情報 |
Journal of the Physical Society of Japan
巻 78,
号 3,
p. 346011-346017,
発行日 2009-03-01
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| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0031-9015 |
| NCID |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00704814 |
| DOI |
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関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1143/JPSJ.78.034601 |
| 出版者 |
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出版者 |
The Physical Society of Japan = 日本物理学会 |
| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
The freezing and melting of 4He in various aerogels with porosities ranging from 92 to 97% were studied using longitudinal ultrasound. The freezing pressure, detected from changes in velocity and attenuation, was elevated compared with that of the bulk by about 0.3 MPa, and showed a weak dependence on aerogel porosity. Inside the aerogels, there was a liquid phase, a solid phase or a coexisting state depending on temperature and pressure of the sample. We report the measurement of the transmission of sound through the solid-liquid interface in aerogel for the first time, which was independent of temperature and unaffected by a small addition of 3He, unlike that at the bulk interface. This indicates that sound attenuation at the interface is due to the disorder, originating from silica strands. Small amounts of 3He in the solid significantly decreased attenuation, because the resultant pinning of dislocations by 3He suppressed phonon scattering, as is observed in bulk solid 4He. © 2009 The Physical Society of Japan.. |
| 著者版フラグ |
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|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
SC-PR-MATSUMOTO-K-346011.pdf (326.1 kB)
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