Renormalization of Fluctuating Tilted-Hexatic Membranes

Details Renormalization of Fluctuating Tilted-Hexatic Membranes Renormalization of Fluctuating Tilted-Hexatic Membranes

1996-09-13

arxiv.org/abs/cond-mat/9609125v2

Phys. Rev. E,56 (1997) R47.

Physics

Condensed Matter

Soft Condensed Matter

REVTEX, 4 pages with 2 figures. To appear in Physical Review E Rapid Communication in July issue

Scientific paper

10.1103/PhysRevE.56.R47

We consider the tilted-hexatic Hamiltonian on the fluctuating membranes. A renormalization-group analysis leads us to find two critical regions; one corresponds to the strong coupling regime of the gradient cross coupling, the other to the weak coupling regime. In the strong coupling regime, we find the locked tilted-hexatic to liquid phase transition when disclinations and vortices unbind simultaneously. On the other hand, in the weak coupling regime we find four phases; the unlocked tilted-hexatic phase, the hexatic phase, the tilted phase, and liquid phase. Disclinations and vortices unbind independently. The crinkled-to-crumpled transition of the fluctuating tilted-hexatic membranes is also described. The crinkled phase in the strong coupling regime is stiffer than that in the weak coupling regime.

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