化学
正交晶系
结晶学
八面体
反铁磁性
四面体
晶体结构
中子衍射
磁性结构
离子
微晶
磁化率
磁化
凝聚态物理
磁场
物理
有机化学
量子力学
作者
Maxim Avdeev,Zakiah Mohamed,Chris D. Ling,Jiechen Lu,Mao Tamaru,Atsuo Yamada,Prabeer Barpanda
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2013-07-11
卷期号:52 (15): 8685-8693
被引量:121
摘要
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.
科研通智能强力驱动
Strongly Powered by AbleSci AI