Monoclinic Ferroelastic Domains in LaCoO 3 ‐Based Perovskites | Zendy

Vullum P. E. | Zendy; Holmestad R. | Zendy; Lein H. L. | Zendy; Mastin J. | Zendy; Einarsrud M.A. | Zendy; Grande T. | Zendy

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Monoclinic Ferroelastic Domains in LaCoO 3 ‐Based Perovskites

Author(s) -

Vullum P. E.,

Holmestad R.,

Lein H. L.,

Mastin J.,

Einarsrud M.A.,

Grande T.

Publication year - 2007

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200700021

Subject(s) - crystal twinning , monoclinic crystal system , materials science , superstructure , crystallography , transmission electron microscopy , trigonal crystal system , perovskite (structure) , macle , condensed matter physics , crystal structure , nanotechnology , microstructure , thermodynamics , metallurgy , chemistry , physics

In addition to the well known ferroelastic domains formed by deformation twinning in rhombohedral perovskites, a monoclinic structure is observed by transmission electron microscopy in LaCoO 3 ‐based materials. The monoclinic domains consist of a one‐dimensional superstructure corresponding to doubling or tripling of the pseudo cubic unit cell due to twinning at the atomic scale, as shown in the figure.

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