Negative heat capacity for a cluster of 147 sodium atoms.

@article{Schmidt2001NegativeHC,
  title={Negative heat capacity for a cluster of 147 sodium atoms.},
  author={Miroslaw Schmidt and Robert Kusche and T Hippler and J. Donges and Werner Kronm{\"u}ller and Bernd von Issendorff and Hellmut Haberland},
  journal={Physical review letters},
  year={2001},
  volume={86 7},
  pages={
          1191-4
        }
}
  • Miroslaw Schmidt, Robert Kusche, +4 authors Hellmut Haberland
  • Published in Physical review letters 2001
  • Physics, Medicine
  • There exists a surprising theoretical prediction for a small system: its microcanonical heat capacity can become negative. An increase of energy can-under certain conditions-lead to a lower temperature. Here we present experimental evidence that a cluster containing exactly 147 sodium atoms does indeed have a negative microcanonical heat capacity near its solid to liquid transition. 

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