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

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

1999-02-10

arxiv.org/abs/cond-mat/9902129v2

Nature 400, 431-433 (29 July 1999)

Physics

Condensed Matter

Superconductivity

4 pages in RevTex plus 3 postscript figures; new version includes: minor corrections to the text and an updated of list of ref

Scientific paper

10.1038/22712

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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