Magnetic Stripes on Hexagonal Lattice with Competing Exchange and Dipole-Dipole Interactions

• Authors: A. Joknys , E. Tornau
• Languages of publication: EN

Abstracts

EN

We obtained the phase diagram for the Ising model with competing exchange and dipolar interactions on 2D hexagonal lattice. By using histogram method we determined the order of the phase transition from isotropic stripe phase to low-temperature anisotropic stripe phases AFh of different stripe widths h. The first order phase transition was found to AF1 and AF2 phases and the second order - to AF3 and AF4 phases. We have also found that in AF1 phase stripe domain grows with time as t^{0.5}. In phases AF3 and AF4 stripe domain growth is proportional to log t.

Keywords

EN

61.46.Bc; 68.18.Jk; 68.35.Rh

Discipline

• 61.46.Bc: Structure of clusters (e.g., metcars; not fragments of crystals; free or loosely aggregated or loosely attached to a substrate)(see also 61.48.-c for structure of fullerenes)
• 68.35.Rh: Phase transitions and critical phenomena
• 68.18.Jk: Phase transitions in liquid thin films

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 3
• Pages: 951-954

Dates

published

2008-03

received

2007-08-26

Contributors

author

A. Joknys

• Semiconductor Physics Institute, Goštauto 11, LT-01108, Vilnius, Lithuania

author

E. Tornau

• Semiconductor Physics Institute, Goštauto 11, LT-01108, Vilnius, Lithuania

References

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Identifiers

DOI

10.12693/APhysPolA.113.951