Magnetic structure of fluorophosphate Na2MnPO4F sodium battery material

Lochab, S and Rayaprol, S and Avdeev, M and Sharma, L and Barpanda, P (2022) Magnetic structure of fluorophosphate Na2MnPO4F sodium battery material. In: Journal of Solid State Chemistry, 308 .

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Abstract

The magnetic structure and properties of fluorophosphate Na2MnPO4F sodium insertion material, assuming a monoclinic (s.g. P21/n, #14) framework, were examined with the help of magnetic susceptibility and neutron powder diffraction. A long-range antiferromagnetic ordering was observed below the Néel temperature (TN) ∼10.4 ​K. Low temperature neutron powder diffractograms were refined to obtain the magnetic structure of fluorophosphate Na2MnPO4F. Below the TN, a commensurate antiferromagnetic spin structure was observed with a propagation vector k = (0, 0, 0), described by the magnetic space group P21/c' (#14.78). The magnetic order is presumably driven by the superexchange interactions via corner-shared F atoms of the octahedral Mn2O8F2 chains running along b-axis.

Item Type:	Journal Article
Publication:	Journal of Solid State Chemistry
Publisher:	Academic Press Inc.
Additional Information:	The copyright for this article belongs to the Academic Press Inc.
Keywords:	Antiferromagnetism; Fluorine compounds; Magnetic susceptibility; Manganese compounds; Neutron powder diffraction; Neutrons; Sodium compounds; Temperature; Vector spaces, Antiferromagnetic orderings; Battery materials; Fluoro-phosphates; Insertion materials; Lows-temperatures; Monoclinics; Neutron powders; Sodium battery; Sodium insertions; Structures and properties, Magnetic structure
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	24 Jun 2022 12:03
Last Modified:	24 Jun 2022 12:03
URI:	https://eprints.iisc.ac.in/id/eprint/73719

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