Diffusion of Impurities in Smectic A Phases

作者: Kwo-Sun Chu , Narinder K. Ailawadi , David S. Moroi

DOI: 10.1080/15421407708084373

关键词:

摘要: Abstract A simple model, based on a hybrid of solid state and liquid theory, is introduced to obtain the impurity diffusion tensor spherical molecules at low concentration in ordered systems. The anisotropy ratio coefficients D⊥ (perpendicular preferred direction molecular alignment) D (parallel it), for tetramethylsilane (TMS) dissolved smectic crystal 4-n-butoxybenzylidene-4′-n-octylaniline (BBOA) calculated temperature T = 53[ddot]C. result D⊥/D∥ 8.6 agrees rather well with experimental data Murphy et al.

参考文章(6)
C. K. Yun, A. G. Fredrickson, Anisotropic Mass Diffusion in Liquid Crystals Molecular Crystals and Liquid Crystals. ,vol. 12, pp. 73- 91 ,(1970) , 10.1080/15421407008082761
J. A. Murphy, J. W. Doane, Y. Y. Hsu, D. L. Fishel, Impurity Diffusion in the Smectic A and Smectic B Phases Molecular Crystals and Liquid Crystals. ,vol. 22, pp. 133- 142 ,(1973) , 10.1080/15421407308083339
J. Töpler, B. Alefeld, T. Springer, Quasielastic Neutron Scattering to Determine Self-Diffusion Constants in Liquid p-Azoxyanisol Molecular Crystals and Liquid Crystals. ,vol. 26, pp. 297- 303 ,(1974) , 10.1080/15421407408083108
W. L. McMillan, Simple Molecular Model for the Smectic A Phase of Liquid Crystals Physical Review A. ,vol. 4, pp. 1238- 1246 ,(1971) , 10.1103/PHYSREVA.4.1238
Charles Kittel, Quantum Theory of Solids ,(1963)