Charge order at the frontier between the molecular and solid states in Ba3NaRu2O9

Simon A. J. Kimber, Mark S. Senn, Simone Fratini +6

We show that the valence electrons of Ba3NaRu2O9, which has a quasi-molecular structure, completely crystallize below 210 K. Using an extended Hubbard model, we show that the charg…