ac calorimetry of C60 single crystals

M. Chung, Yiqin Wang, J. W. Brill, X. D. Xiang, R. Mostovoy, J. G. Hou, A. Zettl

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


We have measured the (effective) specific heat of single crystals of O60 using ac calorimetry. For an fcc crystal prepared by sublimation, there is a sharp hysteretic lambda-shaped anomaly at 260 K, reflecting a latent heat spread over 3 K, similar to what is observed in powders using differential scanning calorimetry. There is also a discontinuity of 11.6R in the specific heat. For orthorhombic crystals prepared by slow evaporation from a toluene-hexane solution, a nonhysteretic, apparently second-order, transition is observed at 239 K. There is a peak in the specific heat consistent with a transition entropy of R ln12.

Original languageEnglish
Pages (from-to)13831-13833
Number of pages3
JournalPhysical Review B
Issue number23
StatePublished - 1992

ASJC Scopus subject areas

  • Condensed Matter Physics


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