Supersolidity

Moses Hung-Wai Chan

Research output: Contribution to journalReview articlepeer-review

21 Scopus citations

Abstract

The observation of nonclassical rotational inertia (NCRI) by the torsional oscillator in 2004 gave rise to a renaissance in the study of solid helium-4. Recent theoretical and experimental studies found evidence that disorder in the solid plays a key role in enabling superfluidity. A recent experiment found a marked increase in the shear modulus that shares the same temperature and helium-3 impurity concentration dependence as that of NCRI. This correlation indicates that the onset of superfluidity requires the pinning and stiffening of the dislocation network by helium-3.

Original languageEnglish (US)
Pages (from-to)1207-1209
Number of pages3
JournalScience
Volume319
Issue number5867
DOIs
StatePublished - Feb 29 2008

All Science Journal Classification (ASJC) codes

  • General

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