TY  - JOUR
UR  - http://stacks.iop.org/0953-8984/27/i=37/a=375401
T1  - Strain induced incommensurate structures in vicinity of reconstructive phase transitions
A1  - A L Korzhenevskii and V Dmitriev
Y1  - 2015
SP  - 375401
JF  - Journal of Physics: Condensed Matter
VL  - 27
IS  - 37
SN  - 0953-8984
N2  - General conditions controlling the formation of incommensurate phases in crystals undergoing
reconstructive phase transitions are analyzed in the framework of a model-free phenomenological
approach. A universal trend to stabilizing such intermediate phases in the vicinity of
reconstructive phase transitions stems from the fact that certain high-order improper Lifshitz
invariants reduce at such transformations to ones bi-linearly coupling critical displacement
gradients and strains or even to the proper Lifshitz invariant. The approach developed here
introduces a universal mechanism for the formation both of premartensite incommensurate phases and
complex structures with giant unit cells, as found in some elemental crystals at high pressure.
ER  -