Measurements of anisotropic mass of magnons confined in a harmonic trap in superfluid ³He-B
classification
❄️ cond-mat.other
keywords
trapanisotropicharmoniche-bmagnonsmassmeasurementssuperfluid
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We can pump magnons to a nearly harmonic magneto-textural trap in superfluid $^3$He-B. Using the NMR spectroscopy of levels in the trap we have measured the anisotropic magnon mass and related values of the spin-wave velocities. Based on our measurements we provide values of the Fermi-liquid parameter $F^a_1$.
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