Supersolid behavior in confined geometry

J. T. West, X. Lin, Z. G. Cheng, Moses Hung-Wai Chan

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We have carried out torsional oscillator and heat capacity measurements on solid He4 samples grown within a geometry which restricts the helium to thin (150μm) cylindrical disks. In contrast with previously reported values from Rittner and Reppy of 20% nonclassical rotational inertia for similar confining dimensions, 0.9% nonclassical rotational inertia (consistent with that found in bulk samples and samples embedded in porous media) was observed in our torsional oscillator cell. In this confined geometry, the heat capacity peak is consistent with that found in bulk solid samples of high crystalline quality.

Original languageEnglish (US)
Article number185302
JournalPhysical Review Letters
Volume102
Issue number18
DOIs
StatePublished - May 8 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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