Hidden scale invariance in the Gay-Berne model. II. Smectic-B phase

Saeed Mehri, Jeppe C. Dyre, and Trond S. Ingebrigtsen
Phys. Rev. E 107, 044702 – Published 27 April 2023

Abstract

This paper complements a previous study of the isotropic and nematic phases of the Gay-Berne liquid-crystal model [Mehri et al., Phys. Rev. E 105, 064703 (2022)] with a study of its smectic-B phase found at high density and low temperatures. We find also in this phase strong correlations between the virial and potential-energy thermal fluctuations, reflecting hidden scale invariance and implying the existence of isomorphs. The predicted approximate isomorph invariance of the physics is confirmed by simulations of the standard and orientational radial distribution functions, the mean-square displacement as a function of time, and the force, torque, velocity, angular velocity, and orientational time-autocorrelation functions. The regions of the Gay-Berne model that are relevant for liquid-crystal experiments can thus fully be simplified via the isomorph theory.

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  • Received 7 March 2023
  • Accepted 10 April 2023

DOI:https://doi.org/10.1103/PhysRevE.107.044702

©2023 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Saeed Mehri, Jeppe C. Dyre*, and Trond S. Ingebrigtsen

  • Glass and Time, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark

  • *dyre@ruc.dk
  • trondingebrigtsen@hotmail.com

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Issue

Vol. 107, Iss. 4 — April 2023

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