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arXiv · 0903.1898

Heat capacity peak in solid 4He: Effects of disorder and 3He impurities

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

Heat capacity measurements with significantly improved resolution find the presence of a peak in a solid 4He 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 3He-4He phase separation, not detected in an earlier work is clearly observed.

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X. Lin, A. C. Clark, Z. G. Cheng, M. H. W. Chan. 2009-03-11. Heat capacity peak in solid 4He: Effects of disorder and 3He impurities. https://doi.org/10.1103/physrevlett.102.125302

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