C S Simões and J R Drugowich de Felício 1998 J. Phys. A: Math. Gen. 31 7265 doi:10.1088/0305-4470/31/35/007
Nonuniversality in short-time critical dynamics
C S Simões and J R Drugowich de Felício
Show affiliationsWe study the behaviour of dynamical critical exponents of the two-dimensional Ising model with a line of defects. Simulations done at an early time (first 100 Monte Carlo steps) reveal that the critical exponent 
of Janssen et al ( Z. Phys. B 73 539) depends on the strength of the exchange coupling constant 
of the altered line. On the other hand, our simulations permit us to conclude that the dynamical critical exponent z is not sensitive to changes in 
. In addition, we investigate the possible invariance of the anomalous dimension 
of the magnetization at the beginning of the process.
- PACS
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64.60.F- Equilibrium properties near critical points, critical exponents
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
- MSC
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82C20 Dynamic lattice systems (kinetic Ising, etc.) and systems on graphs
- Subjects
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Condensed matter: electrical, magnetic and optical
- Dates
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Issue 35 (4 September 1998)
Received 19 March 1998
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Nonuniversality in short-time critical dynamics
C S Simões and J R Drugowich de Felício 1998 J. Phys. A: Math. Gen. 31 7265
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