19 citations · 38 across the 3 of their papers we have counts for
4 papers
Diluted antiferromagnets in a field seem to be in a different universality class than the random-field Ising model
Bjoern Ahrens, Jianping Xiao, Alexander K. Hartmann +1
We perform large-scale Monte Carlo simulations using the Machta-Newman-Chayes algorithms to study the critical behavior of both the diluted antiferromagnet in a field with 30% dilu…
Excitations in high-dimensional random-field Ising magnets
Bjoern Ahrens, Alexander K. Hartmann
Domain walls and droplet-like excitation of the random-field Ising magnet are studied in d={3,4,5,6,7} dimensions by means of exact numerical ground-state calculations. They are ob…
Critical behavior of the Random-Field Ising Magnet with long range correlated disorder
Björn Ahrens, Alexander K. Hartmann
We study the correlated-disorder driven zero-temperature phase transition of the Random-Field Ising Magnet using exact numerical ground-state calculations for cubic lattices. We co…
Critical behavior of the Random-Field Ising model at and beyond the Upper Critical Dimension
Björn Ahrens, Alexander K. Hartmann
The disorder-driven phase transition of the RFIM is observed using exact ground-state computer simulations for hyper cubic lattices in d=5,6,7 dimensions. Finite-size scaling analy…