Real-space perturbation theory for frustrated magnets: application to magnetization plateaus

M. E. Zhitomirsky

doi:10.1088/1742-6596/592/1/012110

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arXiv · 1412.7304

Real-space perturbation theory for frustrated magnets: application to magnetization plateaus

M. E. Zhitomirsky

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Abstract

We present a unified approach to the problem of degeneracy lifting in geometrically frustrated magnets with and without an external field. The method treats fluctuations around a classical spin configuration in terms of a real-space perturbation expansion. We calculate two lowest-order contributions for the Heisenberg spin Hamiltonian and use them to study the magnetization processes of spin-$S$ triangular and kagomé antiferromagnets.

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M. E. Zhitomirsky. 2014-12-23. Real-space perturbation theory for frustrated magnets: application to magnetization plateaus. https://doi.org/10.1088/1742-6596%2F592%2F1%2F012110

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