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Full-Text Articles in Physical Sciences and Mathematics
Scaling Behavior Of Atomic Trajectories In Confined Fluids, Amy Lisa Graves, B. J. Berne
Scaling Behavior Of Atomic Trajectories In Confined Fluids, Amy Lisa Graves, B. J. Berne
Physics & Astronomy Faculty Works
We study the dependence of D, a quantity that has previously been associated with the fractal dimension of an atomic trajectory, on the scale on which it is measured. Single-particle and relative trajectories are generated by molecular-dynamics simulations of Lennard-Jones atoms permanently trapped in a spherical pore. Transient trapping is studied with a generalized Langevin model of dynamics. Confinement of trajectories allows D to exceed 2; in the case of permanent trapping, D diverges.
Pretransitional Optical Activity In Chiral Smectic Liquid Crystals, K. C. Frame, J. L. Walker, Peter J. Collings
Pretransitional Optical Activity In Chiral Smectic Liquid Crystals, K. C. Frame, J. L. Walker, Peter J. Collings
Physics & Astronomy Faculty Works
Pretransitional optical activity measurements in smectic liquid crystals of both law and high chirality are reported. In the low chirality sample, p-(n-(decyloxybenzylidene)-p-amino-(2-methylbutyl)cin-namate (DOBAMBC), the results indicate that the optical activity in both the isotropic phase just above the smectic A phase and in the smectic A phase just above the smectic C* phase can be explained in terms of a Landau-deGennes free energy with no coupling between the chiral modes. In the high chirality sample, 1-methylheptyl 4′-[(4″-tetradecyloxyphenyl)propioloyloxy]biphenyl-4-carboxylate (14P|M7), the data in the isotropic phase above the recently discovered smectic A* phase cannot be explained in this way, even when coupling …
A Comparison Of Pressure Induced And Concentration Induced Smectic A-Nematic-Isotropic Triple Points, J. L. Walker, Peter J. Collings
A Comparison Of Pressure Induced And Concentration Induced Smectic A-Nematic-Isotropic Triple Points, J. L. Walker, Peter J. Collings
Physics & Astronomy Faculty Works
No abstract provided.