Spin-Peierls transition in NaV2O5 in high magnetic fields
S. G. Bompadre, Arthur F. Hebard, Valeri N. Kotov, D. Hall, G. Maris, J. Baas, T. T. M. Palstra
Abstract
We investigate the magnetic field dependence of the spin-Peierls transition in NaV2O5 in the field range 16T-30T. The transition temperature exhibits a very weak variation with the field, suggesting a novel mechanism for the formation of the spin-Peierls state. We argue that a charge ordering transition accompanied by singlet formation is consistent with our observations.
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