By means of decimation techniques as applied in the renormalization-group method, a new
method is proposed to obtain the effective interactions for two-dimensional Hamiltonians at …

We present results of variational calculations for the jellium model of metal surfaces. The
ground-state wave function is represented by a product of local one-and two-body functions …

Total-energy calculations based on microscopic electronic structure are combined with
position-space renormalization-group calculations to predict the structural phase transitions …

A one-dimensional system of electrons interacting via a BCS-type interaction is investigated
by renormalization group techniques in two successive approximations at T= 0, keeping only …

We present a self-consistent calculation of the ground state of the metallic planar surface in
which the discrete-lattice perturbation δ v (r→) is treated variationally, with use of a single …

We present a subroutine package for the computation of Green's functions of relaxed
surfaces and the bulk within the framework of a tight-binding basis. The application of a …

We have shown that, using a general class of Hamiltonians, the transfer-matrix technique
may be used to obtain exact solutions for the electronic states at any crystal surface …

It is shown that all interatomic potentials of the classical type—Morse, Lennard-Jones, etc.,—
yield, by their very nature, an expansion of the interlayer separation between the topmost …

A recently developed method for the self-consistent calculation of localized configurations
has been applied to the Si (111) surface. Results have been obtained for unrelaxed …

We present a very simple scheme for calculating the Green's function of a semi-infinite
surface system described within a localized orbital basis. By generating a series of matching …