Measurements of the Ultrasonic Attenuation in Superfluid 3 He- A

Renzhi Ling et al; John Saunders; W. Wojtanowski; E.R. Dobbs

Measurements of the Ultrasonic Attenuation in Superfluid ³ He- A

Renzhi Ling et al, John Saunders, W. Wojtanowski, E.R. Dobbs

Research output: Contribution to conference › Abstract

Abstract

The anisotropic attenuation of zero sound in superfluid 3 He- A has been measured for eight frequencies in the range (24 ÷ 94) MHz at a pressure of 29.3 bar. The clapping resonance was studied at all frequencies and the re-entrance of the normal flapping resonance was observed for the first time at both 34.2 and 44.2 MHz. The results provide evidence for weak f -wave pairing effects and a measure of strong-coupling corrections to the energy gap away from T c .

Original language	English
Pages	323
Publication status	Published - 1989

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http://stacks.iop.org/0295-5075/10/i=4/a=007

Cite this

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title = "Measurements of the Ultrasonic Attenuation in Superfluid 3 He- A",

abstract = "The anisotropic attenuation of zero sound in superfluid 3 He- A has been measured for eight frequencies in the range (24 ÷ 94) MHz at a pressure of 29.3 bar. The clapping resonance was studied at all frequencies and the re-entrance of the normal flapping resonance was observed for the first time at both 34.2 and 44.2 MHz. The results provide evidence for weak f -wave pairing effects and a measure of strong-coupling corrections to the energy gap away from T c .",

author = "al, {Renzhi Ling et} and John Saunders and W. Wojtanowski and E.R. Dobbs",

year = "1989",

language = "English",

pages = "323",

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TY - CONF

T1 - Measurements of the Ultrasonic Attenuation in Superfluid 3 He- A

AU - al, Renzhi Ling et

AU - Saunders, John

AU - Wojtanowski, W.

AU - Dobbs, E.R.

PY - 1989

Y1 - 1989

N2 - The anisotropic attenuation of zero sound in superfluid 3 He- A has been measured for eight frequencies in the range (24 ÷ 94) MHz at a pressure of 29.3 bar. The clapping resonance was studied at all frequencies and the re-entrance of the normal flapping resonance was observed for the first time at both 34.2 and 44.2 MHz. The results provide evidence for weak f -wave pairing effects and a measure of strong-coupling corrections to the energy gap away from T c .

AB - The anisotropic attenuation of zero sound in superfluid 3 He- A has been measured for eight frequencies in the range (24 ÷ 94) MHz at a pressure of 29.3 bar. The clapping resonance was studied at all frequencies and the re-entrance of the normal flapping resonance was observed for the first time at both 34.2 and 44.2 MHz. The results provide evidence for weak f -wave pairing effects and a measure of strong-coupling corrections to the energy gap away from T c .

M3 - Abstract

SP - 323

ER -