Nonlinear field-dependence of the Imaginary Squashing Mode of superfluid 3He at moderate magnetic fields

C. A. Collett; J. Pollanen; Jia Li; W. J. Gannon; J. P. Davis; W. P. Halperin

doi:10.1088/1742-6596/400/1/012006

Nonlinear field-dependence of the Imaginary Squashing Mode of superfluid ³He at moderate magnetic fields

C. A. Collett, J. Pollanen, Jia Li, W. J. Gannon, J. P. Davis, W. P. Halperin

Research output: Contribution to journal › Conference article › peer-review

Abstract

We present the results of transverse acoustics studies in superfluid ³He-B at fields up to 0.11 T Using acoustic cavity interferometry, we observe the acoustic Faraday effect for a transverse sound wave propagating along the magnetic field and we measure Faraday rotations of the polarization of the sound up to 2070°, significantly more extensive than has been previously seen. We use these results to extend previous calculations of the Landé g factor of the imaginary squashing mode (ISQ), an order parameter collective mode with total angular momentum J = 2. We report nonlinear field splitting of the ISQ at fields as low as 0.05 T.

Original language	English
Article number	012006
Journal	Journal of Physics: Conference Series
Volume	400
Issue number	PART 1
DOIs	https://doi.org/10.1088/1742-6596/400/1/012006
State	Published - 2012
Event	26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China Duration: Aug 10 2011 → Aug 17 2011

ASJC Scopus subject areas

General Physics and Astronomy

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10.1088/1742-6596/400/1/012006

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title = "Nonlinear field-dependence of the Imaginary Squashing Mode of superfluid 3He at moderate magnetic fields",

abstract = "We present the results of transverse acoustics studies in superfluid 3He-B at fields up to 0.11 T Using acoustic cavity interferometry, we observe the acoustic Faraday effect for a transverse sound wave propagating along the magnetic field and we measure Faraday rotations of the polarization of the sound up to 2070°, significantly more extensive than has been previously seen. We use these results to extend previous calculations of the Land{\'e} g factor of the imaginary squashing mode (ISQ), an order parameter collective mode with total angular momentum J = 2. We report nonlinear field splitting of the ISQ at fields as low as 0.05 T.",

author = "Collett, {C. A.} and J. Pollanen and Jia Li and Gannon, {W. J.} and Davis, {J. P.} and Halperin, {W. P.}",

year = "2012",

doi = "10.1088/1742-6596/400/1/012006",

language = "English",

volume = "400",

number = "PART 1",

note = "26th International Conference on Low Temperature Physics, LT 2011 ; Conference date: 10-08-2011 Through 17-08-2011",

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TY - JOUR

T1 - Nonlinear field-dependence of the Imaginary Squashing Mode of superfluid 3He at moderate magnetic fields

AU - Collett, C. A.

AU - Pollanen, J.

AU - Li, Jia

AU - Gannon, W. J.

AU - Davis, J. P.

AU - Halperin, W. P.

PY - 2012

Y1 - 2012

N2 - We present the results of transverse acoustics studies in superfluid 3He-B at fields up to 0.11 T Using acoustic cavity interferometry, we observe the acoustic Faraday effect for a transverse sound wave propagating along the magnetic field and we measure Faraday rotations of the polarization of the sound up to 2070°, significantly more extensive than has been previously seen. We use these results to extend previous calculations of the Landé g factor of the imaginary squashing mode (ISQ), an order parameter collective mode with total angular momentum J = 2. We report nonlinear field splitting of the ISQ at fields as low as 0.05 T.

AB - We present the results of transverse acoustics studies in superfluid 3He-B at fields up to 0.11 T Using acoustic cavity interferometry, we observe the acoustic Faraday effect for a transverse sound wave propagating along the magnetic field and we measure Faraday rotations of the polarization of the sound up to 2070°, significantly more extensive than has been previously seen. We use these results to extend previous calculations of the Landé g factor of the imaginary squashing mode (ISQ), an order parameter collective mode with total angular momentum J = 2. We report nonlinear field splitting of the ISQ at fields as low as 0.05 T.

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U2 - 10.1088/1742-6596/400/1/012006

DO - 10.1088/1742-6596/400/1/012006

M3 - Conference article

AN - SCOPUS:84873644204

SN - 1742-6588

VL - 400

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - PART 1

M1 - 012006

T2 - 26th International Conference on Low Temperature Physics, LT 2011

Y2 - 10 August 2011 through 17 August 2011

ER -

Nonlinear field-dependence of the Imaginary Squashing Mode of superfluid ³He at moderate magnetic fields

Abstract

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