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

National Institute of Advanced Industrial Science and Technology (AIST)

Kyoto University

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 17970-17980

Ämneskategorier

Oorganisk kemi

Materialkemi

Den kondenserade materiens fysik

DOI

10.1021/acs.inorgchem.0c02241

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Senast uppdaterat

2021-01-08