Phase identification, estimation of residual stresses and Li nonstoichiometry

Identification of LiNbO3, LiNb3O8 and Li3NbO4 phases by means of Raman spectrsocopy

in http://iopscience.iop.org/article/10.1088/0953-8984/25/20/205901;jsessionid=E329124D8FFE688DF0260969BC70071D.c3.iopscience.cl...

Methodology of decoupling and estimation of Li nonstoichiometry and residual stress effects in LiNbO3 and LiTaO3 thin films is given in http://scitation.aip.org/content/aip/journal/apl/101/12/10.1063/1.4752448