Magnetic Structure and Properties of the Rechargeable Battery Insertion Compound Na2FePO4F

Avdeev, Maxim and Ling, Chris D and Tan, Thiam Teck and Li, Sean and Oyama, Gosuke and Yamada, Atsuo and Barpanda, Prabeer (2014) Magnetic Structure and Properties of the Rechargeable Battery Insertion Compound Na2FePO4F. In: INORGANIC CHEMISTRY, 53 (2). pp. 682-684.

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Abstract

The magnetic structure and properties of sodium iron fluorophosphate Na2FePO4F (space group Pbcn), a cathode material for rechargeable batteries, were studied using magnetometry and neutron powder diffraction. The material, which can be described as a quasi-layered structure with zigzag Fe-octahedral chains, develops a long-range antiferromagnetic order below similar to 3.4 K. The magnetic structure is rationalized as a super-exchange-driven ferromagnetic ordering of chains running along the a-axis, coupled antiferromagnetically by super-super-exchange via phosphate groups along the c-axis, with ordering along the b-axis likely due to the contribution of dipole dipole interactions.

Item Type:	Journal Article
Publication:	INORGANIC CHEMISTRY
Publisher:	AMER CHEMICAL SOC
Additional Information:	Copyright for this article belongs to the AMER CHEMICAL SOC, USA
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	25 Feb 2014 08:35
Last Modified:	25 Feb 2014 08:35
URI:	http://eprints.iisc.ac.in/id/eprint/48463

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