Mogare, Kailash; Sheptyakov, Denis; Bircher, Roland; Güdel, Hans-Ulrich; Jansen, Martin (2006). Neutron diffraction study of the magnetic structure of Na2RuO4. European physical journal. B - condensed matter and complex systems, 52(3), pp. 371-376. Les Ulis (F): EDP Sciences 10.1140/epjb/e2006-00316-5
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Nuclear and magnetic structures of sodium ruthenate (VI) have been studied by neutron powder diffraction in the temperature range 1.5–200 K. Na2RuO4 crystallizes in the monoclinic structure, with space group P 21/c. The structure consists of apical corner sharing RuO5 trigonal bipyramids forming infinite chains running along the b axis. These infinite [ RuO3O2/2] chains form a pseudo hexagonal close packing of rods with Ru–Ru distances of 3.51 Å within the chains and 5.30–5.47 Å between the chains. At TN=37.2 K a magnetic transition leads to an antiferromagnetic state. The Ru6+ magnetic moments are ordered antiferromagnetically along the chains (b-axis), while the inter-chain interaction is ferromagnetic. A classical infinite chain model was fitted to the magnetic susceptibility data in order to estimate the strength of the nearest-neighbor exchange interactions along and between the chains, resulting in an intrachain coupling parameter of 2J=-86 K, and an interchain parameter J⊥ with |2J⊥ | = 3 K.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Güdel-Zahler, Hans-Ulrich |
ISSN: |
1434-6028 |
Publisher: |
EDP Sciences |
Language: |
English |
Submitter: |
Factscience Import |
Date Deposited: |
04 Oct 2013 14:44 |
Last Modified: |
02 Mar 2023 23:22 |
Publisher DOI: |
10.1140/epjb/e2006-00316-5 |
Web of Science ID: |
000242855400013 |
BORIS DOI: |
10.48350/18376 |
URI: |
https://boris.unibe.ch/id/eprint/18376 (FactScience: 411) |
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