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Title: Magnetic structures of NaFePO4 maricite and triphylite polymorphs for sodium-ion batteries
Authors: Avdeev, M
Mohamed, Z
Ling, CD
Lu, J
Tamaru, M
Yamada, A
Barpanda, P
Keywords: Sodium
Issue Date: 5-Aug-2013
Publisher: American Chemical Society
Citation: Avdeev, M., Mohamed, Z., Ling, C. D., Lu, J., Tamaru, M., Yamada, A., & Barpanda, P. (2013). Magnetic structures of NaFePO4 maricite and triphylite polymorphs for sodium-ion batteries. Inorganic Chemistry, 52(15), 8685-8693. doi:10.1021/ic400870x
Abstract: The magnetic structure and properties of polycrystalline NaFePO4 polymorphs, maricite and triphylite, both derived from the olivine structure type, have been investigated using magnetic susceptibility, heat capacity, and low-temperature neutron powder diffraction. These NaFePO4 polymorphs assume orthorhombic frameworks (space group No. 62, Pnma), built from FeO6 octahedral and PO4 tetrahedral units having corner-sharing and edge-sharing arrangements. Both polymorphs demonstrate antiferromagnetic ordering below 13 K for maricite and 50 K for triphylite. The magnetic structure and properties are discussed considering super- and supersuperexchange interactions in comparison to those of triphylite-LiFePO4. © 2013, American Chemical Society
Gov't Doc #: 5053
ISSN: 0020-1669
Appears in Collections:Journal Articles

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