[Pw_forum] Gibbs Free energy

Fri Apr 4 13:28:28 CEST 2014

Hi All
  After running QHA (implemented in Quantum espresso) I have got
E_internal,F_vibration, Specific heat (C_v), Entropy etc. Does F_vibration
correspond to Helmholtz free energy? If so, Can anybody  please tell me
that how can I calculate Gibbs free energy?
  Thanks in advance.
  Pratik
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