Domain-wall structure of a classical Heisenberg ferromagnet on a Mobius strip

Details Domain-wall structure of a classical Heisenberg ferromagnet on a Mobius strip Domain-wall structure of a classical Heisenberg ferromagnet on a Mobius strip

2008-05-02

arxiv.org/abs/0805.0183v3

Phys. Rev. B 78, 064419 (2008)

Physics

Condensed Matter

Statistical Mechanics

7 pages, 10 figures; published version

Scientific paper

10.1103/PhysRevB.78.064419

We study theoretically the structure of domain walls in ferromagnetic states on Mobius strips. A two-dimensional classical Heisenberg ferromagnet with single-site anisotropy is treated within a mean-field approximation by taking into account the boundary condition to realize the Mobius geometry. It is found that two types of domain walls can be formed, namely, parallel or perpendicular to the circumference, and that the relative stability of these domain walls is sensitive to the change in temperature and an applied magnetic field. The magnetization has a discontinuity as a function of temperature and the external field.

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