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#### Transmutation of the vicinal surface exponent due to gravity

(American Physical Society, 1988-04)

Near the edge of a facet, vicinal surfaces curve away from the plane with exponent (3/2. With gravity normal to the facet the exponent may change to 3. Generally, there will be a crossover from 3 to (3/2 as the facet edge ...

#### New phase in the one-dimensional t-J model

(American Physical Society, 1993-05)

A new phase of a gas of pairs of electrons bounded in a singlet state is found in the one-dimensional t -J model for J > 2t and the density of electrons less than 0.2. This phase was conjectured in the study of the ...

#### Roughness, spatial, and temporal correlations of an interface in a driven nonequilibrium lattice gas

(American Physical Society, 1989-05)

The interface of a stochastic Ising lattice gas driven into a nonequilibrium steady state by a constant, uniform electric field E parallel to the interface is studied by extensive Monte Carlo simulation in two dimensions. ...

#### Effects of gravity on equilibrium crystal shapes: Droplets hung on a wall

(American Physical Society, 1987-04)

General properties of equilibrium crystal shapes pinned on a vertical wall and subject to gravity are sought. For two-dimensional crystals, or three-dimensional ones with axial symmetry held in suitable geometries, we are ...

#### t-J model studied by the power Lanczos method

(American Physical Society, 1995-03)

The initial trial wave function used in a simple ground-state projection method, the power method, is systematically improved by using Lanczos algorithm. Much faster convergence to the ground state achieved by using these ...

#### Spin-charge separation in the two-dimensional Hubbard and t-J models at low electronic density

(American Physical Society, 1994-07)

The spin- and density-correlation functions of the two-dimensional Hubbard model at low electronic density [n] are calculated in the ground state by using the power method, and at finite temperatures by using the quantum ...

#### Bistability in an Ising model with non-Hamiltonian dynamics

(American Physical Society, 1992-03)

We investigate the phenomenon of magnetization bistability in a two-dimensional Ising model with a non-Hamiltonian Glauber dynamics by means of Monte Carlo simulations. This effect has previously been observed in the Toom ...