%0 Journal Article
%A Kleibeuker, Josée E
%A Choi, Eun-Mi
%A Jones, Edward D
%A Yu, Tse-Min
%A Sala, Bianca
%A MacLaren, Belinda A
%A Kepaptsoglou, Demie
%A Hernandez-Maldonado, David
%A Ramasse, Quentin M
%A Jones, Lewys
%A Barthel, Juri
%A MacLaren, Ian
%A MacManus-Driscoll, Judith L
%T Route to achieving perfect B-site ordering in double perovskite thin films
%J NPG Asia Materials
%V 9
%N 7
%@ 1884-4057
%C Tokyo
%M FZJ-2017-07738
%P e406 -
%D 2017
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000406063200002
%R 10.1038/am.2017.113
%U https://juser.fz-juelich.de/record/840183