# Non-isothermal model for the direct isotropic/smectic-A liquid crystalline transition

Source: [Non-isothermal model for the direct isotropic/smectic-A liquid crystalline transition](<https://www.sota2.com/research/paper/68fa23f52c2a37601939d7ab>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-28T13:52:41.004Z

Authors: Nasser Mohieddin Abukhdeir, Alejandro D. Rey

Published: 2009-05-05T03:33:33.000Z

## Abstract

An extension to a high-order model for the direct isotropic/smectic-A liquid crystalline phase transition was derived to take into account thermal effects including anisotropic thermal diffusion and latent heat of phase-ordering. Multi-scale multi-transport simulations of the non-isothermal model were compared to isothermal simulation, showing that the presented model extension corrects the standard Landau-de Gennes prediction from constant growth to diffusion-limited growth, under shallow quench/undercooling conditions. Non-isothermal simulations, where meta-stable nematic pre-ordering precedes smectic-A growth, were also conducted and novel non-monotonic phase-transformation kinetics observed.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/0905.0521>)

[PDF](<https://arxiv.org/pdf/0905.0521.pdf>)