J. Perez-Mato

most citedThe order parameter-entropy relation in some universal classes: experimental evidence

16 citations · 16 across the 1 of their papers we have counts for

collaborators

2 papers

cond-mat2003★ 16 cited

The order parameter-entropy relation in some universal classes: experimental evidence

J. M. Martin-Olalla, F. J. Romero, S. Ramos +3

The asymptotic behaviour near phase transitions can be suitably characterized by the scaling of $Δ s / Q^{2}$ with $ε = 1 - T / T_{c}$ , where $Δ s$ is the excess entropy and $Q$ is the order par…

cond-mat.mtrl-sci1999

First-Principles Study Of The Structural Instabilities In Hexagonal Barium Titanate: Coupling Between The Soft Optical And The Acoustic Modes

Jorge Iniguez, Alberto Garcia, J. M. Perez-Mato

Hexagonal BaTiO_3 undergoes a structural phase transition to an orthorhombic C222_1 phase at T_0 = 222 K. The transition is driven by a soft optical mode with E_2u symmetry whose c…