Nematic phase transitions in two-dimensional systems
Por:
Berche B., Paredes R.
Publicada:
1 ene 2005
Resumen:
Simulations of nematic-isotropic transition of liquid crystals In two dimensions are performed using an O(2) vector model characterized by non linear nearest neighbour spin interaction governed by the fourth Legendre polynomial P4. The system is studied through standard Finite-Size Scaling and conformal rescaling of density profiles or correlation functions. The low temperature limit is discussed in the spin wave approximation and confirms the numerical results, while the value of the correlation function exponent at the deconfining transition seems controversial. © B.Berche, R.Paredes.
Filiaciones:
Berche B.:
Laboratoire de Physique des Matériaux, UMR CNRS 7556, Université Henri Poincaré, Nancy 1, F-54506 Vandoeuvre les Nancy Cedex, France
Centro de Física, Instituto Venezolano de Investigaciones Científicas, Apartado 21827, Caracas 1020A, Venezuela
Paredes R.:
Centro de Física, Instituto Venezolano de Investigaciones Científicas, Apartado 21827, Caracas 1020A, Venezuela
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