1999/10/25 by E. Ya. Sherman, M. Fischer, Mark H. Fischer +3 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Transition Metal Oxide Nanomaterials #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1209/epl/i1999-00533-6
Europhysics Letters, to be published
arxiv created 1999/10/25 · openalex publication_date 1999/12/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We show that the asymmetric crystal environment of the V site in the ladder compound NaV 2 O 5 leads to a strong coupling of vanadium 3 d electrons to phonons. This coupling causes fluctuations of the charge on the V ions, and favors a transition to a charge-ordered state at low temperatures. In the low temperature phase the charge fluctuations modulate the spin-spin superexchange interaction, resulting in a strong spin-phonon coupling.