2 papers
cond-mat.dis-nn2000
Ground states versus low-temperature equilibria in random field Ising chains
G. Schröder, T. Knetter, M. J. Alava +1
We discuss with the aid of random walk arguments and exact numerical computations the magnetization properties of one-dimensional random field chains. The ground state structure is…
cond-mat.stat-mech2000
Disorder induced roughening transition of many elastic lines in a periodic potential
T. Knetter, G. Schröder, M. J. Alava +1
The competing effect of a periodic pinning potential and random point disorder is studied for arrays of elastic lines or directed polymers. The groundstates are investigated by exa…