Analytical and micromagnetic study of a Nel domain wall Academic Article uri icon

abstract

  • For ferromagnets with exchange, dipolar interaction, and uniaxial anisotropy, by both analytic methods and micromagnetic simulations we study Nel domain walls in thin ferromagnetic strips of finite width. Comparison of the numerical results with the analytics yields parameter values that had been unspecified by the analytics, and determines the modifications needed to describe the magnetization both near the strip center and near the boundaries. With no uniaxial anisotropy, the domain wall center can be described by the same hyperbolic secant form as with uniaxial anisotropy, but the effective anisotropy constant must now be thought of as increasing with increasing film thickness and decreasing with increasing film width. 2008 The American Physical Society.

published proceedings

  • Physical Review B

author list (cited authors)

  • Rivkin, K., Romanov, K., Abanov, A. r., Adamov, Y., & Saslow, W. M.

publication date

  • January 1, 2008 11:11 AM