Lead magnoniobate crystal structure determination

Verbaere, A.; Piffard, Y.; Ye, Zuo-Guang; Husson, E.

doi:10.1016/0025-5408(92)90230-W

Scientific article

English

Lead magnoniobate crystal structure determination

ContributorsVerbaere, A.; Piffard, Y.; Ye, Zuo-Guang; Husson, E.

Published inMaterials Research Bulletin, vol. 27, no. 10, p. 1227-1234

Publication date1992-10

Abstract

The single crystal structure of lead magnoniobate PbMg_1/3Nb_2/3O₃ was determined at 20-degrees-C using data collected with an X-ray automatic four circle diffractometer. The average structure is cubic with space group Pm3m and exhibits important atomic shifts from the special positions of the cubic perovskite structure. The disordered local positions as well as the thermal parameters have been refined to final R index and weighted R(w) index of 0.0368 and 0.0378, respectively. Results are discussed in comparison with previous ones obtained by other techniques.

Keywords

Lead
Magnoniobates
PMN
Powder profile refinement
X-ray
Phase
Diffraction

Affiliation

Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée

Citation (ISO format)

VERBAERE, A. et al. Lead magnoniobate crystal structure determination. In: Materials Research Bulletin, 1992, vol. 27, n° 10, p. 1227–1234. doi: 10.1016/0025-5408(92)90230-W

Article (Published version)

Identifiers

PID : unige:171223
DOI : 10.1016/0025-5408(92)90230-W

ISSN of the journal0025-5408

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Lead magnoniobate crystal structure determination

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