Sound propagation in helium-II in grafoil

E. Y. Andrei; W. I. Glaberson

doi:10.1103/PhysRevB.20.4447

Sound propagation in helium-II in grafoil

E. Y. Andrei, W. I. Glaberson

School of Arts and Sciences, Physics & Astronomy

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Fourth-sound-like propagation in superfluid He4 in a grafoil-filled resonator has been observed. The sound velocity was found to be more than an order of magnitude smaller than that of ordinary fourth sound. This significant reduction can be explained by picturing the pore structure in grafoil as an ensemble of coupled Helmholtz resonators.

Original language	English (US)
Pages (from-to)	4447-4449
Number of pages	3
Journal	Physical Review B
Volume	20
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.20.4447
State	Published - 1979

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.20.4447

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title = "Sound propagation in helium-II in grafoil",

abstract = "Fourth-sound-like propagation in superfluid He4 in a grafoil-filled resonator has been observed. The sound velocity was found to be more than an order of magnitude smaller than that of ordinary fourth sound. This significant reduction can be explained by picturing the pore structure in grafoil as an ensemble of coupled Helmholtz resonators.",

author = "Andrei, {E. Y.} and Glaberson, {W. I.}",

year = "1979",

doi = "10.1103/PhysRevB.20.4447",

language = "English (US)",

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issn = "0163-1829",

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AB - Fourth-sound-like propagation in superfluid He4 in a grafoil-filled resonator has been observed. The sound velocity was found to be more than an order of magnitude smaller than that of ordinary fourth sound. This significant reduction can be explained by picturing the pore structure in grafoil as an ensemble of coupled Helmholtz resonators.

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DO - 10.1103/PhysRevB.20.4447

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JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

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ER -

Sound propagation in helium-II in grafoil

Abstract

All Science Journal Classification (ASJC) codes

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