Magnetic Structures of NaFePO4 Maricite and Triphylite Polymorphs for Sodium-Ion Batteries | Zendy

Maxim Avdeev | Zendy; Zakiah Mohamed | Zendy; Chris D. Ling | Zendy; Jiechen Lu | Zendy; Mao Tamaru | Zendy; Atsuo Yamada | Zendy; Prabeer Barpanda | Zendy

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Magnetic Structures of NaFePO₄ Maricite and Triphylite Polymorphs for Sodium-Ion Batteries

Author(s) -

Maxim Avdeev,

Zakiah Mohamed,

Chris D. Ling,

Jiechen Lu,

Mao Tamaru,

Atsuo Yamada,

Prabeer Barpanda

Publication year - 2013

Publication title -

inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 233

eISSN - 1520-510X

pISSN - 0020-1669

DOI - 10.1021/ic400870x

Subject(s) - chemistry , orthorhombic crystal system , crystallography , octahedron , antiferromagnetism , tetrahedron , crystal structure , neutron diffraction , magnetic structure , ion , crystallite , magnetic susceptibility , magnetization , condensed matter physics , magnetic field , physics , organic chemistry , quantum mechanics

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.

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