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.
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Publicerad i

Inorganic Chemistry

0020-1669 (ISSN) 1520-510X (eISSN)

Vol. 59 Nummer/häfte 24 s. 17970-17980

Kategorisering

Ämneskategorier (SSIF 2011)

Oorganisk kemi

Materialkemi

Den kondenserade materiens fysik

Identifikatorer

DOI

10.1021/acs.inorgchem.0c02241

PubMed

33264565

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Senast uppdaterat

2025-02-24