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Spurious First-Order Phase Transitions in the Self-Consistent Phonon Approximation
Phys. Rev. Lett. 28, 895 – Published 3 April, 1972
DOI: https://doi.org/10.1103/PhysRevLett.28.895
Abstract
It is shown that when the self-consistent phonon approximation is applied to displacive phase transitions, it leads to inconsistent results near the transition point, and that this may give rise to spurious first-order transitions.
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