Cation Distributions and Magnetic Properties of Ferrispinel MgFeMnO4
Artikel i vetenskaplig tidskrift, 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.
Författare
Nami Matsubara
Kungliga Tekniska Högskolan (KTH)
Titus Masese
Kyoto University
National Institute of Advanced Industrial Science and Technology (AIST)
E. Suard
Institut Laue-Langevin
Ola Kenji Forslund
Kungliga Tekniska Högskolan (KTH)
E. Nocerino
Kungliga Tekniska Högskolan (KTH)
Rasmus Palm
Kungliga Tekniska Högskolan (KTH)
Zurab Guguchia
Paul Scherrer Institut
Daniel Andreica
Universitatea Babes-Bolyai
Alexandra Hardut
Universitatea Babes-Bolyai
M. Ishikado
Comprehensive Research Organization for Science and Society (CROSS)
Konstantinos Papadopoulos
Chalmers, Fysik, Materialfysik
Yasmine Sassa
Chalmers, Fysik, Materialfysik
Martin Månsson
Kungliga Tekniska Högskolan (KTH)
Inorganic Chemistry
0020-1669 (ISSN) 1520-510X (eISSN)
Vol. 59 24 17970-17980Ämneskategorier (SSIF 2011)
Oorganisk kemi
Materialkemi
Den kondenserade materiens fysik
DOI
10.1021/acs.inorgchem.0c02241
PubMed
33264565