Observation of Classical Rotational Inertia and Nonclassical Supersolid Signals in Solid 4He below 250 mK

Preprint

10 October 2007

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0604528

Abstract

We have confirmed the existence, as first reported by Kim and Chan, of a supersolid state in solid 4He at temperatures below 250 mK. We have employed a torsional oscillator cell with a square cross section to insure a locking of the solid to the oscillating cell. We find that NCRI signal is not a universal property of solid 4He, but can be eliminated through an annealing of the solid helium sample. This result has important implications for the nature of the supersolid state.

Keywords

CLASSICAL ROTATIONAL
SUPERSOLID SIGNALS
NONCLASSICAL
SOLID 4HE
TORSIONAL
ANNEALING
INERTIA
HELIUM

All Related Versions

Version 1, 2006-04-22, ArXiv
Version 2, 2006-05-08, ArXiv
Version 3, 2006-05-31, ArXiv
Version 4, 2006-08-16, ArXiv
Version 5, 2007-10-10, ArXiv

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