5 papers
Properties of a continuous-random-network model for amorphous systems
Yuhai Tu, J. Tersoff, G. Grinstein +1
We use a Monte Carlo bond-switching method to study systematically the thermodynamic properties of a "continuous random network" model, the canonical model for such amorphous syste…
Stability of Solid State Reaction Fronts
G. Grinstein, Yuhai Tu, J. Tersoff
We analyze the stability of a planar solid-solid interface at which a chemical reaction occurs. Examples include oxidation, nitridation, or silicide formation. Using a continuum mo…
Systems with Multiplicative Noise: Critical Behavior from KPZ Equation and Numerics
Yuhai Tu, G. Grinstein, M. A. Muñoz
We show that certain critical exponents of systems with multiplicative noise can be obtained from exponents of the KPZ equation. Numerical simulations in 1d confirm this prediction…
Phase Structure of Systems with Multiplicative Noise
G. Grinstein, M. A. Muñoz, Yuhai Tu
The phase diagrams and transitions of nonequilibrium systems with multiplicative noise are studied theoretically. We show the existence of both strong and weak-coupling critical be…
Suppression of tunneling by interference in half-integer--spin particles
Daniel Loss, David P. DiVincenzo, G. Grinstein
Within a wide class of ferromagnetic and antiferromagnetic systems, quantum tunneling of magnetization direction is spin-parity dependent: it vanishes for magnetic particles with h…