Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2002-12-27
Phys. Rev. B 68, 134401 (2003)
Physics
Condensed Matter
Disordered Systems and Neural Networks
7 pages, 9 figures (.eps files)
Scientific paper
10.1103/PhysRevB.68.134401
The far-from-equilibrium low-temperature dynamics of ultra-thin magnetic films is analyzed by using Monte Carlo numerical simulations on a two dimensional Ising model with competing exchange ($J_0$) and dipolar ($J_d$) interactions. In particular, we focus our attention on the low temperature region of the $(\delta,T)$ phase diagram (where $\delta= J_0/J_d$) for the range of values of $\delta$ where striped phases with widths $h=1$ ($h1$) and $h=2$ ($h2$) are present. The presence of metastable states of the phase $h2$ in the region where the phase $h1$ is the thermodynamically stable one and viceversa was established recently. In this work we show that the presence of these metastable states appears as a blocking mechanism that slows the dynamics of magnetic domains growth when the system is quenched from a high temperature state to a low temperature state in the region of metastability.
Cannas Sergio A.
Gleiser Pablo M.
Montemurro Marcelo A.
Tamarit Francisco A.
No associations
LandOfFree
Slow dynamics in a 2D Ising model with competing interactions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Slow dynamics in a 2D Ising model with competing interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slow dynamics in a 2D Ising model with competing interactions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-550706