Issue 7, 1995

Stoichiometry and structure of copper-doped LiNbO3 and LiTaO3

Abstract

Phase diagram studies in the systems Li2O–Nb2O5–Cu–O and Li2O–Ta2O5–Cu–O show that, at 1000 °C, Cu enters the LiNbO3, LiTaO3 structures primarily as CuI; the main doping mechanism is Li+⇌ Cu +. Rietveld refinement of X-ray powder diffraction (XRD) data of Cu-doped LiNbO3 shows that Cu+ occupies the Li site and this is further confirmed by extended X-ray absorption fine structure (EXAFS) data for Cu-doped LiNbO3 and LiTaO3.

Article information

Article type
Paper

J. Mater. Chem., 1995,5, 1043-1047

Stoichiometry and structure of copper-doped LiNbO3 and LiTaO3

M. Paul, A. V. Chadwick and A. R. West, J. Mater. Chem., 1995, 5, 1043 DOI: 10.1039/JM9950501043

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