Journal Article

FZJ-2017-07738

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Route to achieving perfect B-site ordering in double perovskite thin films

Kleibeuker, J. E. ; Choi, E.-M. ; Jones, E. D. ; Yu, T.-M. ; Sala, B. ; MacLaren, B. A. ; Kepaptsoglou, D. ; Hernandez-Maldonado, D. ; Ramasse, Q. M. ; Jones, L. ; Barthel, J.FZJ* ; MacLaren, I. ; MacManus-Driscoll, J. L. (Corresponding author)

2017
Tokyo

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Please use a persistent id in citations: http://hdl.handle.net/2128/15968  doi:10.1038/am.2017.113

Abstract: Double perovskites (DP, A2BB’O6) exhibit a breadth of multifunctional properties with a huge potential range of applications, including magneto-optic and spintronic devices. However, spontaneous cation ordering is limited by the similar size and charge of B and B’ cations. We introduce a route to stimulate B-site rock-salt ordering. By growing thin films on (111)-oriented substrates, ‘in-plane’ strain acts on the intrinsically tilted oxygen octahedra of the DP and produces two different B-site cages (in size and shape), stimulating spontaneous cation ordering. For the ferromagnetic insulator La2CoMnO6, clear Co/Mn ordering was achieved by growing on (111)-oriented substrates. The difference in B-site cages was further enhanced when grown under minor (111) in-plane compressive strain, resulting in long-range ordering with a saturation magnetization of 5.8 μB/formula unit (f.u.), close to the theoretical 6 μB/f.u., without antiferromagnetic behavior. Our approach enables the study of many new ordered DPs which have never been made before.

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Contributing Institute(s):

1. Materialwissenschaft u. Werkstofftechnik (ER-C-2)

Research Program(s):

1. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)

Appears in the scientific report 2017

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Database coverage:
; ; ; ; DOAJ Seal ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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