TY - JOUR
T1 - Hysteresis in driven disordered systems
T2 - From plastic depinning to magnets
AU - Marchetti, Cristina M.
AU - Dahmen, Karin A.
PY - 2002
Y1 - 2002
N2 - We study the dynamics of a viscoelastic medium driven through quenched disorder by expanding about mean field theory in (formula presented) dimensions. The model exhibits a critical point separating a region where the dynamics is hysteretic, with a macroscopic jump between strongly pinned and weakly pinned states, from a region where the sliding state is unique and no jump occurs. The disappearance of the jump at the critical point is described by universal exponents. As suggested by Marchetti et al. [Phys. Rev. Lett. 85, 1104 (2000)], the model appears to be in the same universality class as the zero-temperature random field Ising model of hysteresis in magnets.
AB - We study the dynamics of a viscoelastic medium driven through quenched disorder by expanding about mean field theory in (formula presented) dimensions. The model exhibits a critical point separating a region where the dynamics is hysteretic, with a macroscopic jump between strongly pinned and weakly pinned states, from a region where the sliding state is unique and no jump occurs. The disappearance of the jump at the critical point is described by universal exponents. As suggested by Marchetti et al. [Phys. Rev. Lett. 85, 1104 (2000)], the model appears to be in the same universality class as the zero-temperature random field Ising model of hysteresis in magnets.
UR - http://www.scopus.com/inward/record.url?scp=84871904946&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84871904946&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.66.214201
DO - 10.1103/PhysRevB.66.214201
M3 - Article
AN - SCOPUS:84871904946
SN - 1098-0121
VL - 66
SP - 1
EP - 6
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 21
ER -