Spin-Peierls transition in NaV2O5 in high magnetic fields
arXiv:cond-mat/9911298 · doi:10.1103/PhysRevB.61.R13321
Abstract
We investigate the magnetic field dependence of the spin-Peierls transition in NaV$_2$O$_5$ 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.
4 pages, 3 figures, final version to appear in Phys. Rev. B (RC)