Magnetic Structure and Properties of the Rechargeable Battery Insertion Compound Na2FePO4F
| Autor: | Atsuo Yamada, Sean Li, Gosuke Oyama, Chris D. Ling, Prabeer Barpanda, Maxim Avdeev, Thiam Teck Tan |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Battery (electricity)
Magnetometer 02 engineering and technology 010402 general chemistry 01 natural sciences Neutron diffraction law.invention Inorganic Chemistry Nuclear magnetic resonance Chemical structure Group (periodic table) law Magnetic properties 0302 Inorganic Chemistry Antiferromagnetism Physical and Theoretical Chemistry Materials Magnetic structure Chemistry Crystal structure 021001 nanoscience & nanotechnology 0104 chemical sciences Dipole Crystallography Zigzag Ferromagnetism Condensed Matter::Strongly Correlated Electrons 0210 nano-technology |
| Zdroj: | Inorganic Chemistry |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/ic402513d |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|