Progress of Theoretical Physics
The Equilibrium Facet Shape of the Staggered Body-Centered-Cubic Solid-on-Solid Model: -- Density Matrix Renormalization Group Study --
Noriko Akutsu, Yuko Akutsu
Abstract
We present a new method for the numerical calculation of the equilibrium crystal shape around a facet. Our method is based on the transfer matrix method with the product-wave-function renormalization group (PWFRG) algorithm for the asymmetric density matrix, which is an extension of the density matrix renormalization group (DMRG) algorithm. By applying this method to the staggered body-centered-cubic solid-on-solid model, which is known to exhibit the inverse roughening phenomena, we obtain the facet shape, shape exponents, and step tension.