C. Hess et al., LOCALIZATION EFFECTS IN THE PEIERLS STATE OF THE QUASI-2-DIMENSIONAL COMPOUNDS (PO2)(4)(WO3)(2M)(M-GREATER-THAN-OR-EQUAL-TO-8), Synthetic metals, 86(1-3), 1997, pp. 2419-2422
The monophosphate tungsten bronzes show Peierls instabilities with tra
nsition temperatures increasing with m. In the large m compounds, loca
lisation effects are found in the charge density wave state. These pro
perties are discussed in relation with the decrease of the electron de
nsity with increasing m.