Multiscale structural view of phase transitions in spin-crossover molecular solids

Structural transitions in solids.

Spin-Crossover Molecular Solids Beyond Rigid Crystal Approximation

The qualitative analysis of the spin-crossover molecular solid with distortion effect is presented. A spin-crossover solid with effect of distortion is studied in the framework of the Ising-like model with two-order parameters under statistical approach, where the effect of elastic strain on inter-ion interaction is considered. These considerations lead to examination of the relation between th...

Phase transitions in solids of diperiodic symmetry.

All isotropy subgroups (and thus all quasicontinuous symmetry changes) corresponding to k points of symmetry have been obtained for the 80 diperiodic space groups. The detailed information for such phase transitions is given here for the diperiodic space group I'———.Only two distinct images (sets of representation matrices) occur for this example yielding Landau-Ginzburg-Wilson (LGW) Hamiltonia...

Photoacoustic investigation of phase transitions in solids?

The use of the photoacoustic effect in the investigation of firstand second-order phase transitions has been examined. Changes in the amplitude of the photoacoustic signal across the phase transition are compared with changes in thermal properties such as specific heat and thermal diffusivity. The systemsstudied include NaN02, TlN03, CsN03, NH4N03, BaTiO,, COO, Cu,HgI,, V 0 2 andV305. The curre...

Induced by Shock Waves Microscopic View of Structural Phase Transitions

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