Short-range order phenomena in lead-based perovskites
- 1 December 1987
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 76 (1) , 277-282
- https://doi.org/10.1080/00150198708016947
Abstract
The electron diffraction patterns of many monocrystalline and polycrystalline lead-based perovskites have common superstructure features consisting of weak {h+1/2,k+1/2,O} spots, together with rods of diffuse scattering in 〈110〉 reciprocal lattice directions. These superstructure phenomena are thought to be associated with the short-range ordering of lead-site vacancies to form microregions with an I-centred 2ao x 2ao x 2ao superlattice.Keywords
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