Neutron Powder Diffraction Study of Molybdenum and Tungsten Dioxides

Abstract

Neutron powder diffraction data for MoO₂ [P2₁/c, a 5.6102(3), b 4.8573(2), c 5.6265(3) Ǻ, β 120.915(2)°] and WO₂ [P2₁/c, a 5.5769(2), b 4.8986(1), c 5.6644(2) Ǻ, β 120.678(1)] have been employed to refine structural parameters by the Rietveld method. The results confirm previous studies but have considerably greater precision.