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Article overview
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Spectral signatures of magnetic Bloch oscillations in one-dimensional easy-axis ferromagnets | | Sergey Shinkevich
; Olav F. Syljuåsen
; | | Date: |
28 Dec 2011 | | Abstract: | Domain walls in a one-dimensional gapped easy-axis ferromagnet can exhibit
Bloch oscillations in an applied magnetic field. We investigate how exchange
couplings modify this behavior within an approximation based on non-interacting
domain-wall bound states. In particular we obtain analytical results for the
spectrum and the dynamic structure factor, and show where in momentum space to
expect equidistant energy levels, the Wannier-Zeeman ladder, which is the
spectral signature of magnetic Bloch oscillations. We compare our results to
previous calculations employing a single domain-wall-approximation, and make
predictions relevant for the material $CoCl2cdot2H2O$. | | Source: | arXiv, 1112.6195 | | Services: | Forum | Review | PDF | Favorites | |
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