English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Landau model of the smectic C-isotropic phase transition

MPS-Authors
/persons/resource/persons48589

Pleiner,  Harald
MPI for Polymer Research, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Mukherjee, P. K., Pleiner, H., & Brand, H. R. (2002). Landau model of the smectic C-isotropic phase transition. The Journal of Chemical Physics, 117(16), 7788-7792. doi:10.1063/1.1509055.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-64CA-2
Abstract
We propose a Landau model to describe the smectic C-isotropic phase transition. A general Landau theory for the coupled orientational and translational order parameters and including the tilt angle is developed. The conditions for the smectic C- isotropic phase transition and the stability conditions of the smectic C phase are calculated. On the basis of this model it is argued that the smectic C-isotropic phase transition is always first order. We present a detailed analysis of the question under which conditions a direct smectic C-isotropic phase transition prevails in comparison to smectic A-isotropic and nematic-isotropic transitions. The theoretical results are found to be in qualitative agreement with all published experimental results. (C) 2002 American Institute of Physics.