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Simple Landau Model of the Liquid-RII-RI Rotator Phases of Alkanes

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DOI: 10.4236/jmp.2012.31012    4,430 Downloads   7,218 Views   Citations

ABSTRACT

Simple Landau free energy function is presented to describe the Liquid-RII-RI phase sequence of alkanes and transitions between them. The order parameters necessary to describe these rotator phase transitions are identified. We present a mean-field description of the Liquid-RII and Liquid-RI transitions. General arguments are presented for the topology of the phase diagram in the vicinity of the Liquid-RII-RI triple point. Within this model the Liquid-RII and Liquid-RI transitions are found to be always strongly first order. Calculations based on this model agree qualitatively with experiments.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

P. Mukherjee and S. Dey, "Simple Landau Model of the Liquid-RII-RI Rotator Phases of Alkanes," Journal of Modern Physics, Vol. 3 No. 1, 2012, pp. 80-84. doi: 10.4236/jmp.2012.31012.

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