Heat capacity peak in solid He4: Effects of disorder and He3 impurities

X. Lin, A. C. Clark, Z. G. Cheng, M. H.W. Chan

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

Heat capacity measurements with significantly improved resolution find the presence of a peak in a solid He4 sample in coexistence with liquid. With improved crystallinity, the peak decreases in height and moves to lower temperature. A hysteretic heat capacity signature consistent with He3-He4 phase separation, not detected in an earlier work is clearly observed.

Original languageEnglish (US)
Article number125302
JournalPhysical Review Letters
Volume102
Issue number12
DOIs
StatePublished - Mar 23 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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