Investigation of the energy operator spectrum for a two-magnon system in a one-dimensional anisotropic Heisenberg ferromagnet with second neighbor interactions (Q1292018)
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scientific article; zbMATH DE number 1300684
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Investigation of the energy operator spectrum for a two-magnon system in a one-dimensional anisotropic Heisenberg ferromagnet with second neighbor interactions |
scientific article; zbMATH DE number 1300684 |
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Investigation of the energy operator spectrum for a two-magnon system in a one-dimensional anisotropic Heisenberg ferromagnet with second neighbor interactions (English)
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23 September 1999
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We consider a physical system of two magnons in an anisotropic one-dimensional Heisenberg ferromagnet with interactions up to the second neighbor. We study the spectrum and bound states of the two-magnon Hamiltonian. We find that under certain conditions, the spectrum differs from that of the isotropic Hamiltonian by one extra or one missing bound state.
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anisotropic one-dimensional Heisenberg ferromagnet
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spectrum
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bound states
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two-magnon Hamiltonian
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