6533b7dcfe1ef96bd1272131

RESEARCH PRODUCT

Superfluid density in metastable 3He4He mixtures

Joachim BodensohnPaul Leiderer

subject

Condensed Matter::Quantum GasesMaterials scienceCondensed matter physicsSpinodal decompositionAttenuationNucleationExtrapolationNon-equilibrium thermodynamicsCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsSuperfluidityMetastabilitySecond soundddc:530Electrical and Electronic Engineering

description

Abstract We havestudied superfluld 3He4He mixtures quenched into nonequilibrium states inside the miscibility gap by means of second sound . From the results for the second sound velocity we conclude that the superfluid density in the metastable state is well described by extrapolation from equilibrium values. The boundary of the metastable region, where nucleation processes set in rapidly, is reflected in a sharp increase of the second sound attenuation.

https://doi.org/10.1016/s0921-4526(90)81118-8