Abstract

The magnetic ground states in highly ordered double perovskites LaSr1−xCaxNiReO6 (x = 0.0, 0.5, 1.0) are studied in view of the Goodenough-Kanamori rules of superexchange interactions in this paper. In LaSrNiReO6, Ni and Re sublattices are found to exhibit curious magnetic states separately, but no long range magnetic ordering is achieved. The magnetic transition at ~255 K is identified with the independent Re sublattice magnetic ordering. Interestingly, the sublattice interactions are tuned by modifying the Ni-O-Re bond angles through Ca doping. Upon Ca doping, the Ni and Re sublattices start to display a ferrimagnetically ordered state at low temperature. The neutron powder diffraction data reveals long range ferrimagnetic ordering of the Ni and Re magnetic sublattices along the crystallographic b-axis. The transition temperature of the ferrimagnetic phase increases monotonically with increasing Ca concentration.

Details

Title
Revisiting Goodenough-Kanamori rules in a new series of double perovskites LaSr1−xCaxNiReO6
Author
Jana Somnath 1   VIAFID ORCID Logo  ; Aich Payel 2   VIAFID ORCID Logo  ; Anil, Kumar P 3 ; Forslund, O K 4   VIAFID ORCID Logo  ; Nocerino, E 4 ; Pomjakushin, V 5 ; Månsson, M 4   VIAFID ORCID Logo  ; Sassa, Y 6   VIAFID ORCID Logo  ; Svedlindh, Peter 7 ; Karis Olof 8 ; Vasudeva, Siruguri 9   VIAFID ORCID Logo  ; Ray, Sugata 10 

1  Indian Association for the Cultivation of Science, Centre for Advanced Materials, Jadavpur, India (GRID:grid.417929.0) (ISNI:0000 0001 1093 3582); Uppsala University, Department of Physics and Astronomy, Uppsala, Sweden (GRID:grid.8993.b) (ISNI:0000 0004 1936 9457); Helmholtz-Zentrum Berlin für Materialien und Energie, Institute for Methods and Instrumentation in Synchrotron Radiation Research FG-ISRR, Berlin, Germany (GRID:grid.424048.e) (ISNI:0000 0001 1090 3682) 
2  Indian Association for the Cultivation of Science, School of Materials Science, Jadavpur, India (GRID:grid.417929.0) (ISNI:0000 0001 1093 3582) 
3  Uppsala University, Department of Engineering Sciences, Uppsala, Sweden (GRID:grid.8993.b) (ISNI:0000 0004 1936 9457); Seagate Technology, Springtown, United Kingdom (GRID:grid.438003.c) (ISNI:0000 0004 0502 1783) 
4  KTH Royal Institute of Technology, Department of Applied Physics, Kista, Sweden (GRID:grid.5037.1) (ISNI:0000000121581746) 
5  Paul Scherrer Institute, Laboratory for Neutron Scattering & Imaging, Villigen, Switzerland (GRID:grid.5991.4) (ISNI:0000 0001 1090 7501) 
6  Department of Physics Chalmers University Of Technology, Gteborg, Sweden (GRID:grid.5371.0) (ISNI:0000 0001 0775 6028) 
7  Uppsala University, Department of Engineering Sciences, Uppsala, Sweden (GRID:grid.8993.b) (ISNI:0000 0004 1936 9457) 
8  Uppsala University, Department of Physics and Astronomy, Uppsala, Sweden (GRID:grid.8993.b) (ISNI:0000 0004 1936 9457) 
9  246C 2nd floor Common Facility Building (CFB), Bhabha Atomic Research Centre, UGC-DAE-Consortium for Scientific Research Mumbai Centre, Mumbai, India (GRID:grid.418304.a) (ISNI:0000 0001 0674 4228) 
10  Indian Association for the Cultivation of Science, Centre for Advanced Materials, Jadavpur, India (GRID:grid.417929.0) (ISNI:0000 0001 1093 3582); Indian Association for the Cultivation of Science, School of Materials Science, Jadavpur, India (GRID:grid.417929.0) (ISNI:0000 0001 1093 3582) 
Publication year
2019
Publication date
2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-019-54427-0
ProQuest document ID
2321694385
Copyright
© The Author(s) 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.