Wednesday, 6 April 2016

Antiferromagnetic textures

Intrinsic magnetization of antiferromagnetic textures
Erlend G. Tveten, Tristan Müller, Jacob Linder, and Arne Brataas
Phys. Rev. B 93, 104408 (2016)
Sketch of the intrinsic magnetization m(z) (red) (not to scale) of one-dimensional (a) Néel and (b) Bloch (not used in the calculations) domain walls in the order parameter n(z) (green). The equilibrium magnetization profile was calculated from Eq. (14). We note that the magnetization is so small that in a one-dimensional system, the domain-wall spin must be treated quantum mechanically. However, for higher-dimensional extended systems, the total spin of domain walls could be of appreciable size because the intrinsic magnetization is additive in the perpendicular directions.

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