Ordered phases of rigid cores having semiflexible tails. II. Model for smectic-A and reentrant-nematic phases with hard repulsions

Journal Article · Wed Nov 30 23:00:00 EST 1983 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.28.3526· OSTI ID:5267705

Dowell, F

The general partition function of the preceding paper is applied to the special cases of smectic-A and nematic liquid crystals and isotropic liquids in bulk phases. The relative stabilities of the isotropic, nematic, smectic-A, and reentrant-nematic phases are studied as a function of temperature, pressure, tail flexibility, and tail length. The following thermodynamic and molecular ordering properties are studied in these phases and at the phase transitions: smectic-A order parameter, core and tail intermolecular orientational order parameters, tail intramolecular orientational order parameter, density, and entropy. The role of the semiflexible tails in stabilizing the smectic-A and reentrant-nematic phases is explicitly elucidated.

• Research Organization: Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5267705
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 28:6; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640420* -- Fluid Physics-- Properties & Structure of Fluids-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL MODELS
CRYSTALS
FLUIDS
FUNCTIONS
INTERMOLECULAR FORCES
LIQUID CRYSTALS
LIQUIDS
MATHEMATICAL MODELS
ORDER PARAMETERS
ORIENTATION
PARTITION FUNCTIONS
PHASE STUDIES
PRESSURE DEPENDENCE
STABILITY
TEMPERATURE DEPENDENCE