First-order and continuous transitions in confined liquid crystals
- 1 January 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 41 (2) , 1149-1152
- https://doi.org/10.1103/physreva.41.1149
Abstract
We propose a mechanism for the crossover between first-order and continuous transitions in confined liquid crystals that is based on a dimensional crossover of both the space and the order-parameter variables. We estimate the relevant parameters by carrying out explicit mean-field calculations of the global phase diagram of an appropriate lattice model. We discuss in some detail the effects on the phase diagram of the fluctuations neglected by the mean-field approximation.Keywords
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