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X-ray powder diffraction study of La2LiTaO6

Published online by Cambridge University Press:  21 November 2014

Mark A. Rodriguez ,
James J. M. Griego ,
Harlan J. Brown-Shaklee ,
Mia A. Blea-Kirby ,
John F. Ihlefeld  and
Erik D. Spoerke
Mark A. Rodriguez*
Affiliation:
Sandia National Laboratories, Materials Characterization and Performance Department, Albuquerque, New Mexico 87185
James J. M. Griego
Affiliation:
Sandia National Laboratories, Materials Characterization and Performance Department, Albuquerque, New Mexico 87185
Harlan J. Brown-Shaklee
Affiliation:
Sandia National Laboratories, Electronic, Optical, and Nanomaterials Department, Albuquerque, New Mexico 87185
Mia A. Blea-Kirby
Affiliation:
Sandia National Laboratories, Electronic, Optical, and Nanomaterials Department, Albuquerque, New Mexico 87185
John F. Ihlefeld
Affiliation:
Sandia National Laboratories, Electronic, Optical, and Nanomaterials Department, Albuquerque, New Mexico 87185
Erik D. Spoerke
Affiliation:
Sandia National Laboratories, Electronic, Optical, and Nanomaterials Department, Albuquerque, New Mexico 87185
*
a)Author to whom correspondence should be addressed. Electronic mail: marodri@sandia.gov
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Abstract

The structure of La2LiTaO6 has been derived from the powder X-ray powder diffraction (XRD) data. La2LiTaO6 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 P21/n (14), and Z = 2. The structure of La2LiTaO6 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 La2LiTaO6 shall facilitate quantitative analysis of this impurity phase which is often observed during synthesis of the fast-ion conductor phase Li5La3Ta2O12.

Keywords

La2LiTaO6X-ray powder diffractionRietveld refinementLi volatilityfast-ion conductorperovskite
Type
Technical Articles
Information
Powder Diffraction , Volume 30 , Issue 1 , March 2015 , pp. 57 - 62
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Copyright
Copyright © International Centre for Diffraction Data 2014 

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