Magnetic diamond chains of Cu3O4
Abstract
We present magnetization measurements on a satellite phase of YBa2Cu3Ox namely BaCu3O4. This two-dimensional material is composed of alternate layers of Ba and Cu3O4. In the latters, the Cu and O atoms are one-dimensionaly ordered in diamond-shaped chains of formula unit Cu3O4. We will show that this material encounters a magnetic phase transition at around 336 K which is due to intra-ordering through superexchange coupling of the spins born by the Cu atoms in these diamond chains. We will discuss the possibility of either ferrimagnetic or antiferromagnetic inter-ordering of these weakly coupled one-dimensional objects and the possible role of Dzyaloshinskii-Moriya interactions.
- Publication:
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APS March Meeting Abstracts
- Pub Date:
- February 2012
- Bibcode:
- 2012APS..MARL13012L