Structure Cristalline du Dioxyde de Niobium
- 1 September 1963
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 2 (9) , 565-573
- https://doi.org/10.1143/jjap.2.565
Abstract
Crystal Structure of Niobium Dioxide. The X-ray diffraction results on NbO2, prepared by heating in vacuo a mixture of powders of Nb2O5 and Nb, confirm the previous electron diffraction results obtained with thin films. Besides the strong reflections attributed to a rutile lattice structure, a great number of additional weak reflections were observed. Following this observation, the structure analysis has been undertaken by calculating the structure factors on various models. Three types of possible structures derived from the rutile structure were investigated: a superlattice, a defective lattice, and an interstitial lattice structure, respectively. It is concluded that there is only one possible structure modification of a superlattice type. Some of the O-Nb-O molecules in the rutile structure change their molecular orientation on the (001) planes whose stacking sequence is expressed by αβα' βα…Keywords
This publication has 3 references indexed in Scilit:
- Structures des Oxydes de NiobiumJapanese Journal of Applied Physics, 1963
- Note on the Crystal Structure of Niobium Dioxide.Acta Chemica Scandinavica, 1955
- Die Oxyde des NiobsZeitschrift für anorganische und allgemeine Chemie, 1941