Physics – Condensed Matter – Materials Science
Scientific paper
2011-07-05
Physics
Condensed Matter
Materials Science
4 pages, 6 figures
Scientific paper
We propose a classical model Hamiltonian with a ground state presenting a spin ice structure. We analyze the introduction of metastable excitations on this ground state, showing the emergence of pairs of magnetic monopoles. The interaction between monopoles and dipoles in the system is studied. As a consequence, we obtain an effective nonlocal interaction between monopoles and dipoles from a local classical spin model.
da Fonseca J. E.
Mota Andre L.
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