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A HRTEM study of the Ruddlesden-Popper compositions Sr2LMn2O7 (Ln = Y, La, Nd, Eu, Ho)

Abstract:
High resolution transmission electron microscopy has been used to probe the microstructure of then=2 Ruddlesden-Popper manganates Sr2LnMn2O7(Ln=Y, La, Nd, Eu, Ho). Intergrowths ofn=1 (K2NiF4) are observed only forLn=La. Intergrowths withn≥5, essentially perovskite microdomains, are seen in the other compositions. The density of perovskite regions is greatest near the edges of the thin specimens, with then=2 structure becoming established in the bulk. The complementarity of HRTEM and neutron diffraction is discussed. © 1998 Academic Press.
Publication status:
Published

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Publisher copy:
10.1006/jssc.1998.7764

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Rosseinsky, MJ More by this author
Journal:
JOURNAL OF SOLID STATE CHEMISTRY
Volume:
138
Issue:
1
Pages:
135-140
Publication date:
1998-06-05
DOI:
ISSN:
0022-4596
URN:
uuid:30b8ea00-5a45-452d-a6ac-17b1f5764edd
Source identifiers:
36553
Local pid:
pubs:36553
Language:
English

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