Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52969#.VK3xY8nQrzE Author(s)    Kyongok Kang Affiliation(s) Forschungszentrum Juelich, ICS-3, Soft Condesed Matter, Juelich, Germany . ABSTRACT This article is a comprehensive overview of the ongoing research of the author on charged colloidal rods out of equilibrium, under external electric fields and at high concentrations around the glass transition. The suspensions of fd-virus particles are used as a model system for charged colloidal rods, which exhibit several disorder-order (and liquid-crystalline) phase transitions. When a low AC electric field is applied to suspensions in isotropic-nematic coexistence concentration, with frequencies that are sufficiently low to polarize the electric double layer and the layer of condensed ions, various phases/states are induced: a chiral nematic, a dynamical state where nematic domains persistently melt and ...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50580#.VEX1clfHRK0 Author(s) Shipra Saraswat , Surendra Dutt Sharma Affiliation(s) Department of Chemistry, IFTM University, Moradabad, India . ABSTRACT Specific heat measurements have been made in glassy Se 80-x Te 20 Ag x (0 ≤ x ≤ 15) alloys using differential scanning calorimetry (DSC) technique. An extremely large increase in the specific heat values has been observed at the glass transition temperature. It has also been found that the values of C p below glass transition temperature and the difference of C p values before and after glass transition (ΔC p ) are highly composition dependent. This indicates that the incorpora...