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Surface magnetic canting in a ferromagnet

P. Betti·M. G. Pini·A. Rettori
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Abstract

The surface magnetic canting (SMC) of a semi-infinite film with ferromagnetic exchange interaction and competing bulk and surface anisotropies is investigated via a nonlinear mapping formulation of mean-field theory previously developed by our group [L. Trallori et al., Int. J. Mod. Phys. B 10, 1935-1988 (1996)], and extended to the case where an external magnetic field is applied to the system. When the field H is parallel to the film plane, the condition for SMC is found to be the same as that recently reported by Popov and Pappas [Phys. Rev. B 64, 184401 (2001)]. The case of a field H applied perpendicularly to the film plane is also investigated. In both cases, the zero-temperature equilibrium configuration is easily determined by our theoretical approach.

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P. Betti, M. G. Pini, A. Rettori. 2002-09-16. Surface magnetic canting in a ferromagnet. https://doi.org/10.1103/physrevb.67.012402

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