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Frequency dependence of fast mode ultrasound attenuation of liquid <sup>4</sup>He in aerogel
https://doi.org/10.24517/00010999
https://doi.org/10.24517/00010999c912f8bc-7538-446b-b0e5-ee41d6284e2b
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SC-PR-MATUSMOTO-32054.pdf (107.9 kB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||||
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| 公開日 | 2017-10-03 | |||||||
| タイトル | ||||||||
| タイトル | Frequency dependence of fast mode ultrasound attenuation of liquid <sup>4</sup>He in aerogel | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||||
| 資源タイプ | conference paper | |||||||
| ID登録 | ||||||||
| ID登録 | 10.24517/00010999 | |||||||
| ID登録タイプ | JaLC | |||||||
| 著者 |
Matsumoto, Koichi
× Matsumoto, Koichi× Tsuboya, Hiroyuki× Ohmori, K.× Abe, S.× Suzuki, H.× Tayurskii, Dmitrii A. |
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| 著者別表示 |
松本, 宏一
× 松本, 宏一
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| 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 Physics: Conference Series 巻 150, 号 3, p. 32054, 発行日 2009-01-01 |
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| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 1742-6588 | |||||||
| DOI | ||||||||
| 関連タイプ | isVersionOf | |||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | 10.1088/1742-6596/150/3/032054 | |||||||
| 出版者 | ||||||||
| 出版者 | Institute of Physics | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | In our previous work, anomalous sound attenuation in superfluid phase was observed in liquid 4He filled in 97.0 % porous aerogel using longitudinal ultrasound at the frequency of 10 MHz. To understand the nature of the observed anomaly one needs to know the viscous coupling between normal component and aerogel strands. As far as the viscous penetration depth depends on frequency in the present work we have measured longitudinal ultrasound propagation in liquid 4He filled in 97.0 % porous aerogel at the frequencies 6, 10, and 15 MHz. In the normal phase the sound velocity had no frequency dependence and was reduced from that of bulk liquid, since the sound velocity in aerogel is smaller than in bulk liquid helium. The attenuation in normal phase is discussed using a viscoelastic theory. The obtained results indicated that the ultrasound experiment in normal phase was performed in low frequency or crossover regime. © 2009 IOP Publishing Ltd. | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | AM | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||
