Abstract
The nature of cation doping in the important optical material lithium niobate has been studied using a combination of X-ray and neutron powder diffraction methods. Samples of nominal composition Li1–xMgxNbO3(x= 0.1, 0.2, 0.3) were studied. Magnesium was found to substitute exclusively at the Li site, with concommitant Li vacancies, and with no deviation from stoichiometry at the Nb position, i.e.[Li1–xMgx/2][Nb]O3. This is the first detailed structural study of doped lithium niobate by diffraction methods and supports previous models obtained by local structural techniques and computational methods.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have