From discussion w/Chris:
Does a thermodynamic phase change always require a crystallographic structure change?
If we exclude:
- long- to short- range order phase changes (liquids, polymers). So, sticking to solid-solid metal transitions.
- second order phase transitions (example of ferromagnetic-paramagnetic)
- electronic structure changes (semiconductors to metals, electron redistribution)
Within this scope, a thermodynamic phase change should correspond to a change in the equilibrium crystallographic state or in crystallographic symmetry/occupancy.
In relation to this, phase stability should also be defined.
From discussion w/Chris:
Does a thermodynamic phase change always require a crystallographic structure change?
If we exclude:
Within this scope, a thermodynamic phase change should correspond to a change in the equilibrium crystallographic state or in crystallographic symmetry/occupancy.
In relation to this, phase stability should also be defined.