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Attenuation and velocity of 5 MHz zero sound in superfluid 3HeB

✍ Scribed by G.G. Ihas; B.N. Engel; R.F. Berg


Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
290 KB
Volume
109
Category
Article
ISSN
0375-9601

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Observation of quantum limit of zero sou
✍ Koichi Matsumoto; Toru Ikegami; Yuichi Okuda 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 174 KB

We are studying the quantum limit of zero sound absorption in normal 3He in which sound quanta are absorbed or emitted directly by quasiparticles. For that experiment, high frequency ultrasound is required since the condition hto > K T must be satisfied. We have succeeded in observing zero sound at