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A Spiral Spin State with Open Boundary Conditions in a Magnetic Field

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 نشر من قبل Randy Fishman
 تاريخ النشر 2017
  مجال البحث فيزياء
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In order to model a spiral spin state in a thin film, we study a classical Heisenberg model with open boundary conditions. With magnetic field applied in the plane of the film, the spin state becomes ferromagnetic above a critical field that increases with thickness $N$. For a given $N$, the spiral passes through states with $n= n_0$ up to 0 complete periods in steps of 1. These numerical results agree with earlier analytic results in the continuum limit and help explain the susceptibility jumps observed in thin films.



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