Discovery of the Acoustic Faraday Effect in Superfluid 3He-B

Y. Lee; T. M. Haard; W. P. Halperin; J. A. Sauls

doi:10.1038/22712

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arXiv · cond-mat/9902129

Discovery of the Acoustic Faraday Effect in Superfluid 3He-B

Y. Lee·T. M. Haard·W. P. Halperin·J. A. Sauls

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Abstract

We report the discovery of the acoustic Faraday effect in superfluid 3He-B. The observation of this effect provides the first direct evidence for propagating transverse acoustic waves in liquid 3He, a mode first predicted by Landau in 1957. The Faraday rotation is large and observable because of spontaneously broken spin-orbit symmetry in 3He-B. We compare the experimental observations with a simulation of the transverse acoustic impedance that includes the field-induced circular birefringence of transverse waves.

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Y. Lee, T. M. Haard, W. P. Halperin, J. A. Sauls. 1999-06-08. Discovery of the Acoustic Faraday Effect in Superfluid 3He-B. https://doi.org/10.1038/22712

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