Control of octahedral rotations in (LaNiO$_3$)$_{n}$/(SrMnO$_3$)$_m$ superlattices

Details Control of octahedral rotations in (LaNiO$_3$)$_{n}$/(SrMnO$_3$)$_m$ superlattices Control of octahedral rotations in (LaNiO$_3$)$_{n}$/(SrMnO$_3$)$_m$ superlattices

2011-02-17

arxiv.org/abs/1102.3473v1

Physics

Condensed Matter

Materials Science

4 pages, 4 figures, submitted to PRB

Scientific paper

Oxygen octahedral rotations have been measured in short-period (LaNiO$_3$)$_n$/(SrMnO$_3$)$_m$ superlattices using synchrotron diffraction. The in-plane and out-of-plane bond angles and lengths are found to systematically vary with superlattice composition. Rotations are suppressed in structures with $m>n$, producing a nearly cubic form of LaNiO$_3$. Large rotations are present in structures with $m

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