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- Title
Magnetic Single‐Ion Anisotropy and Curie‐Weiss Behaviour of Mg<sub>3</sub>V<sub>4</sub>(PO<sub>4</sub>)<sub>6</sub>.
- Authors
Schwarz, Björn; Fu, Qiang
- Abstract
Direct current (DC) magnetometry data obtained for polycrystalline Mg3V4(PO4)6 were fitted by various magnetic models based on angular momentum basis states. As a result, single‐ion anisotropy of the magnetic V 3+ ions could be identified to decisively determine the magnetic properties of Mg3V4(PO4)6 and not antiferromagnetic exchange interaction between V ions as supposed in literature. It could be demonstrated analytically, by utilization of the Van Vleck equation, that also single‐ion anisotropy can lead to a linear and origin shifted inverse susceptibility curve in the high temperature region. The Weiss constant obtained from a Curie‐Weiss fit to such a susceptibility curve might falsely be ascribed to antiferromagnetic exchange interactions if additional low temperature magnetic properties are not considered for verification.
- Subjects
EXCHANGE interactions (Magnetism); MAGNETIC properties; LOW temperatures; CURVE fitting; HIGH temperatures; ANGULAR momentum (Mechanics); MAGNETIC anisotropy; MAGNETIC entropy
- Publication
European Journal of Inorganic Chemistry, 2024, Vol 27, Issue 18, p1
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.202400162