Cation Distributions and Magnetic Properties of Ferrispinel MgFeMnO4
Journal article, 2020
The crystal structure and magnetic properties of the cubic spinel MgFeMnO4 were studied by using a series of in-house techniques along with large-scale neutron diffraction and muon spin rotation spectroscopy in the temperature range between 1.5 and 500 K. The detailed crystal structure is successfully refined by using a cubic spinel structure described by the space group Fd3¯ m. Cations within tetrahedral A and octahedral B sites of the spinel were found to be in a disordered state. The extracted fractional site occupancies confirm the presence of antisite defects, which are of importance for the electrochemical performance of MgFeMnO4 and related battery materials. Neutron diffraction and muon spin spectroscopy reveal a ferrimagnetic order below TC = 394.2 K, having a collinear spin arrangement with antiparallel spins at the A and B sites, respectively. Our findings provide new and improved understanding of the fundamental properties of the ferrispinel materials and of their potential applications within future spintronics and battery devices.
Author
Nami Matsubara
Royal Institute of Technology (KTH)
Titus Masese
National Institute of Advanced Industrial Science and Technology (AIST)
Kyoto University
E. Suard
Institut Laue-Langevin
Ola Kenji Forslund
Royal Institute of Technology (KTH)
E. Nocerino
Royal Institute of Technology (KTH)
Rasmus Palm
Royal Institute of Technology (KTH)
Zurab Guguchia
Paul Scherrer Institut
Daniel Andreica
Babeș-Bolyai University
Alexandra Hardut
Babeș-Bolyai University
M. Ishikado
Comprehensive Research Organization for Science and Society (CROSS)
Konstantinos Papadopoulos
Chalmers, Physics, Materials Physics
Yasmine Sassa
Chalmers, Physics, Materials Physics
Martin Månsson
Royal Institute of Technology (KTH)
Inorganic Chemistry
0020-1669 (ISSN) 1520-510X (eISSN)
Vol. 59 24 17970-17980Subject Categories
Inorganic Chemistry
Materials Chemistry
Condensed Matter Physics
DOI
10.1021/acs.inorgchem.0c02241
PubMed
33264565