Thermodynamic potential

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Thermodynamic potential (\Phi). In the Landau theory of second-order phase transitions the thermodynamic potential takes the form of a power series in the order parameter (\eta) (Ref. 1 Eq. 143.1)

\left.\Phi(P, T, \eta)\right. = \Phi_0 + \alpha(P,T)\eta + A(P,T)\eta^2 + C(P,T)\eta^3 + B(P,T)\eta^4 + ...,

where P is the pressure and T is the temperature.

See also[edit]

References[edit]

  1. L. D. Landau and E. M. Lifshitz, "Statistical Physics" (Course of Theoretical Physics, Volume 5) 3rd Edition Part 1, Pergamon Press (1980)