Fartaria, Rui P.S. and Sweatman, M.B. (2009) Density minimum in the isotropic-nematic transition of hard cut-spheres. Chemical Physics Letters, 478 (4-6). pp. 150-154. ISSN 0009-2614
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
We study the isotropic-nematic transition of hard cut-spheres over a wide range of aspect ratios using Monte Carlo simulation and umbrella sampling. We find a minimum in the density of both coexisting phases near to L/D=0.04 (thickness/diameter) and show that this minimum is a result of competition between the solid volume of the disks and the free volume which is significantly influenced by nematic pre-ordering in the isotropic phase. We expect similar behaviour for other kinds of discotic particles. This behaviour should be observed as a kind of 'partially re-entrant' isotropic phase for discotic mesogens within an appropriate concentration range.
| Item type: | Article |
|---|---|
| ID code: | 13467 |
| Keywords: | density, isotropic-nematic transition, hard cut-spheres, chemical engineering, Chemical technology, Engineering (General). Civil engineering (General), Physics |
| Subjects: | Technology > Chemical technology Technology > Engineering (General). Civil engineering (General) Science > Physics |
| Department: | Faculty of Engineering > Chemical and Process Engineering |
| Related URLs: | |
| Depositing user: | Dr Martin Sweatman |
| Date Deposited: | 19 Nov 2009 15:30 |
| Last modified: | 20 Sep 2012 11:12 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/13467 |
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