TY - JOUR
AU - Kleibeuker, Josée E
AU - Choi, Eun-Mi
AU - Jones, Edward D
AU - Yu, Tse-Min
AU - Sala, Bianca
AU - MacLaren, Belinda A
AU - Kepaptsoglou, Demie
AU - Hernandez-Maldonado, David
AU - Ramasse, Quentin M
AU - Jones, Lewys
AU - Barthel, Juri
AU - MacLaren, Ian
AU - MacManus-Driscoll, Judith L
TI - Route to achieving perfect B-site ordering in double perovskite thin films
JO - NPG Asia Materials
VL - 9
IS - 7
SN - 1884-4057
CY - Tokyo
M1 - FZJ-2017-07738
SP - e406 -
PY - 2017
AB - 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.
LB - PUB:(DE-HGF)16
UR - <Go to ISI:>//WOS:000406063200002
DO - DOI:10.1038/am.2017.113
UR - https://juser.fz-juelich.de/record/840183
ER -