Quasi-classical localized states in the 2D ferrimagnet
Ural Federal University, 620002, Mira str. 19, Ekaterinburg, Russia
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Published online: 4 July 2018
We consider highly anisotropic 2D quantum s = 1/2 (pseudo)magnetic system which is equivalent to the frequently used system of charged hard-core bosons on a square lattice. In the continuous quasi-classical approximation, the types of localized excitations are determined by asymptotic analysis and compared with numerical results. Depending on the homogeneous ground state, the excitations are the ferro and antiferro type vortices, the skyrmion-like topological excitations or linear domain walls.
© The Authors, published by EDP Sciences, 2018
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