Magnetic structure of Sr2CuWO6
S Vasala1, M Avdeev, S Danilkin
1Department of Chemistry, Aalto University, PO Box 16100, FI-00076 AALTO, Finland.
Journal of Physics. Condensed Matter : an Institute of Physics Journal
|November 13, 2014
Summary
The magnetic structure of double perovskite Sr2CuWO6 was determined to be a collinear antiferromagnetic structure at 3 K. This 3D magnetic order arises from strong antiferromagnetic interactions between next-nearest neighbors.
Area of Science:
- Solid State Physics
- Materials Science
- Magnetism
Background:
- Double perovskite Sr2CuWO6 is a material with potential magnetic applications.
- Understanding its magnetic structure is crucial for predicting its properties.
Purpose of the Study:
- To determine the magnetic structure of Sr2CuWO6.
- To verify previous theoretical predictions of its magnetic ordering.
Main Methods:
- Neutron powder diffraction was employed to probe the magnetic structure.
- Analysis of diffraction data at 3 K revealed the magnetic ordering.
Main Results:
- Sr2CuWO6 exhibits a collinear antiferromagnetic structure at 3 K.
- The propagation vector was identified as k = (0, 1/2, 1/2).
- Copper(II) moments were found to be 0.57(1) μB, aligned parallel to the a-axis.
Conclusions:
- The experimental results confirm theoretical predictions of 3D magnetic long-range order.
- Strong antiferromagnetic next-nearest-neighbor interactions are identified as the driving force for this magnetic order.
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