Nucleation in the Ising ferromagnet by a field spatially spreading in time
arXiv:1204.2367 · doi:10.1016/j.physa.2014.02.020
Abstract
The nucleation in Ising ferromagnet has been studied by Monte Carlo simulation. Here, the magnetic field is spreading over the space in time. The nucleation time is observed to increase as compared to that in the case of static field. The clusters of negative spins is observed to grow from the center. The growth of effective magnetisation is studied with temperature and the strength of spreading magnetic field. The ratio of nucleation time and effective time is also studied with strength of spreading magnetic field. The effective time would introduce itself as a new scale of time in the case of nucleation by spatially spreading magnetic field. The effective time and the nucleation time both are observed to decrease as a power law fashion with the rate factor of spreading magnetic field.
16 pages Latex, 8 figures, To appear in Physica A
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Cited by in corpus (8)
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- Effects of random fields on the reversal of magnetisation of Ising ferromagnet
- Reversal of magnetisation in Ising ferromagnet by the field having gradient
- Magnetisation reversal in Ising Ferromagnet by Thermal and Field gradients
- Anisotropy driven reversal of magnetisation in Blume-Capel ferromagnet: A Monte Carlo study
- Metastability in graded and step like variation of field and anisotropy of the Blume-Capel ferromagnet
- Competitive metastable behaviours of surface and bulk in Ising ferromagnet
- Theoretical studies on switching of magnetisation in thin film