3 papers
cond-mat.dis-nn2004
Domain Growth in Random Magnets
Raja Paul, Sanjay Puri, Heiko Rieger
We study the kinetics of domain growth in ferromagnets with random exchange interactions. We present detailed Monte Carlo results for the nonconserved random-bond Ising model, whic…
cond-mat.str-el2004
Scaling of the spin stiffness in random spin-1/2 chains : Crossover from pure-metallic behaviour to random singlet-localized regime
Nicolas Laflorencie, Heiko Rieger
In this paper we study the localization transition induced by the disorder in random antiferromagnetic spin-1/2 chains. The results of numerical large scale computations are presen…
cond-mat.dis-nn2002
Universal properties of shortest paths in isotropically correlated random potentials
Roland Schorr, Heiko Rieger
We consider the optimal paths in a -dimensional lattice, where the bonds have isotropically correlated random weights. These paths can be interpreted as the ground state configu…