Landau Free Energy Expansion for Chiral Ferroelectric Smectic Liquid Crystals

1984 ◽  
Vol 114 (1-3) ◽  
pp. 259-270 ◽  
Author(s):  
Boštjan Žekš
Keyword(s):  
Free Energy ◽  
Liquid Crystals ◽  
Smectic Liquid Crystals ◽  
Landau Free Energy ◽  
Energy Expansion

scholarly journals Fluctuations and phase transitions of uniaxial and biaxial liquid crystals using a theoretically informed Monte Carlo and a Landau free energy density

2019 ◽  
Vol 31 (17) ◽  
pp. 175101
Author(s):  
Stiven Villada-Gil ◽  
Viviana Palacio-Betancur ◽  
Julio C Armas-Pérez ◽  
Juan J de Pablo ◽  
Juan P Hernández-Ortiz
Keyword(s):  
Monte Carlo ◽  
Free Energy ◽  
Phase Transitions ◽  
Liquid Crystals ◽  
Energy Density ◽  
Free Energy Density ◽  
Landau Free Energy ◽  
Biaxial Liquid Crystals

ISOBARIC PROCESSES CLOSE TO THE SPINODAL

2004 ◽  
Vol 13 (07) ◽  
pp. 1183-1187
Author(s):  
ANTONIO DELFINO ◽  
JOÃO B. Da SILVA ◽  
JORGE S. De Sá MARTINS ◽  
SUZANA MOSS De OLIVEIRA ◽  
CLAUDETTE E. CORDEIRO
Keyword(s):  
Free Energy ◽  
Critical Point ◽  
Barrier Height ◽  
Life Time ◽  
Metastable States ◽  
Spinodal Point ◽  
Landau Free Energy ◽  
Energy Expansion

We construct a generalized Landau free energy expansion around any spinodal point, for which the usual expansion around the critical point is a particular case. The decay of deeply quenched metastable states close to the spinodal through isobaric processes is analyzed and their mean life time is related to a barrier height, which we compute. The results are compared with those obtained through the use of the usual Landau free energy expansion around the critical point.

scholarly journals Deuteration and pressure effects on landau free energy expansion coefficents in RbDXH2-xPO4

1981 ◽  
Vol 39 (1) ◽  
pp. 1045-1048 ◽  
Author(s):  
Paul Schnackenberg ◽  
Jacob Pipman ◽  
V. Hugo Schmidt ◽  
G. F. Tuthill
Keyword(s):  
Free Energy ◽  
Pressure Effects ◽  
Landau Free Energy ◽  
Energy Expansion

scholarly journals Phase Behavior of Weakly-segregated Multiblock Copolymers with Two-scale Periodic Architecture

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Semion Kuchanov ◽  
Vladimir Pichugin ◽  
Gerrit ten Brinke
Keyword(s):  
Free Energy ◽  
Phase Behavior ◽  
Scale Space ◽  
Length Scale ◽  
Multiblock Copolymers ◽  
Limit Theory ◽  
Structural Symmetry ◽  
Landau Free Energy ◽  
Energy Expansion

AbstractThe phase behavior of a melt of periodic two-scale multiblock copolymers has been theoretically studied in the framework of the Weak-Segregation Limit theory. The effect of the structural symmetry of the macromolecules on the vertex functions of the Landau free energy expansion is considered in detail. The existence of a thermodynamically stable mesophase with a two length-scale space periodicity has been revealed for a melt of monodisperse periodic heteropolymers.

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