X-ray powder diffraction study of La2LiTaO6. Issue 1 (21st November 2014)

• Record Type: Journal Article
• Authors: Rodriguez, Mark A.; Griego, James J. M.; Brown-Shaklee, Harlan J.; Blea-Kirby, Mia A.; Ihlefeld, John F.; Spoerke, Erik D.
• Is Part Of: Powder diffraction. Volume 30:Issue 1(2015)
• Page Start: 57
• Page End: 62
• Publication Date: 2014-11-21
• Subjects: La2LiTaO6, -- X-ray powder diffraction, -- Rietveld refinement, -- Li volatility, -- fast-ion conductor, -- perovskite; Powder metallurgy -- Periodicals; Materials -- Analysis -- Periodicals; 620.1127
• DOI: 10.1017/S0885715614001183
• Languages: English
• ISSNs: 0885-7156

Abstract

Abstract : The structure of La2 LiTaO6 has been derived from the powder X-ray powder diffraction (XRD) data. La2 LiTaO6 is monoclinic with unit-cell parameters a = 5.621(1) Å, b = 5.776(1) Å, c = 7.954(2) Å, β = 90.34(2)°, space group P 21 / n (14), and Z = 2. The structure of La2 LiTaO6 is an ordered perovskite with alternating Li and Ta octahedra. A new set of powder XRD data ( d -spacing and intensity listing) has been generated to replace entry 00-039-0897 within the Powder Diffraction File. The newly elucidated structural data for La2 LiTaO6 shall facilitate quantitative analysis of this impurity phase which is often observed during synthesis of the fast-ion conductor phase Li5 La3 Ta2 O12 .