High genus periodic gyroid surfaces of non-positive Gaussian curvature

Details High genus periodic gyroid surfaces of non-positive Gaussian curvature High genus periodic gyroid surfaces of non-positive Gaussian curvature

1996-04-02

arxiv.org/abs/cond-mat/9604013v1

Physics

Condensed Matter

10 pages plain TeX figures available on request or at http://saka.ichf.edu.pl/WTGRH/surfaces.html Phys. Rev. Lett. in press

Scientific paper

10.1103/PhysRevLett.76.2726

In this paper we present the novel method for the generation of periodic embedded surfaces of nonpositive Gaussian curvature. The structures are related to the local minima of the scalar order parameter Landau-Ginzburg hamiltonan for microemulsions. The method is used to generate six unknown surfaces of Ia$\bar 3$d symmetry (gyroid) of genus 21, 53, 69, 109, 141 and 157 per unit cell. All of them but that of genus 21 are most likely the minimal surfaces. Schoen-Luzzati gyroid minimal surface of genus 5 (per unit cell) is also obtained.

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