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Two-Particle Cluster Theory for Biaxial Nematic Phase Based on a Recently Proposed Interaction Potential |
| ZHANG Zhi-Dong1;ZHANG Yan-Jun2,3;SUN Zong-Li1 |
| 1Department of Physics, Hebei University of Technology, Tianjin 300130
2Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033
3Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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ZHANG Zhi-Dong, ZHANG Yan-Jun, SUN Zong-Li 2006 Chin. Phys. Lett. 23 3025-3028 |
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Abstract Two-particle cluster theory is applied to study the biaxial nematic phase formed by biaxial molecules interacting with a simplified model proposed by Sonnet et al. [Phys. Rev. E 67 (2003) 061701]. For the temperature dependences of the internal energy per particle and of the order parameters, the two-particle theory yields an improved result compared with mean field theory. Concerning the phase diagram, the two-particle theory gives the numerical result in qualitative agreement with the mean field theory.
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| Keywords:
61.30.Cz
61.30.Gd
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Published: 01 November 2006
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| PACS: |
61.30.Cz
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(Molecular and microscopic models and theories of liquid crystal structure)
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61.30.Gd
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(Orientational order of liquid crystals; electric and magnetic field effects on order)
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