News and Views
Nature Physics 5, 534 - 535 (2009)
doi:10.1038/nphys1354
Subject Categories: Condensed-matter physics | Statistical physics, thermodynamics and nonlinear dynamics
Supersolid helium: Stiffer but flowing
Sébastien Balibar1
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Sébastien Balibar is in the Statistical Physics Laboratory, Ecole Normale Supérieure and CNRS, 24 rue Lhomond, 75231 Paris, France.
e-mail: balibar@lps.ens.fr
Abstract
There is growing evidence that solid helium-4 possesses superfluid properties, but the nature of this paradoxical phenomenon remains mysterious. The finding that helium-4 in its 'supersolid' form is stiffer than the normal solid adds to the enigma.
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