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- Azad, A.K. (author)
Spin-glass transition in a La-doped Sr2MnWO6 double perovskite
- Article/chapterEnglish2008
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- 2008
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- LIBRIS-ID:oai:research.chalmers.se:652e47b7-298a-42a6-882d-088415010598
- https://research.chalmers.se/publication/93499URI
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226100URI
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-112392URI
- https://doi.org/10.1103/PhysRevB.77.064418DOI
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- Language:English
- Summary in:English
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- Polycrystalline Sr2-xLaxMnWO6 (x=0.25 and 0.5) materials have been prepared by a traditional solid state sintering method and studied by neutron powder diffraction (NPD) and magnetization measurements. Rietveld analysis of the temperature dependent NPD data shows that the compounds crystallize in monoclinic symmetry (space group P2(1)/n). The unit cell volume decreases with increasing La3+ concentration at the A site. The crystal structure contains alternating MnO6 and WO6 octahedra, considerably tilted due to the relative small size of the cations that occupy the A sublattice of the perovskite. ac and dc magnetization measurements show a destruction of the low temperature antiferromagnetic phase by electron doping through substitution of Sr2+ for La3+. The electron doping creates a mixed tungsten valence (W6+/W5+) resulting in a low temperature spin-glass state.
Subject headings and genre
- NATURVETENSKAP Kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences hsv//eng
- SR2FEMOO6
- TEMPERATURE
- AA'
- MAGNETIC-PROPERTIES
- BA-2
- CA-2
- NEUTRON POWDER DIFFRACTION
- SR-2
- PHASE
- TECHNOLOGY
- Teknisk fysik med inriktning mot fasta tillståndets fysik
Added entries (persons, corporate bodies, meetings, titles ...)
- Wikberg, J. MagnusUppsala universitet,Fasta tillståndets fysik(Swepub:uu)magwi766 (author)
- Eriksson, Sten,1958Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)stene (author)
- Kahn, O. (author)
- Svedlindh, PeterUppsala universitet,Fasta tillståndets fysik(Swepub:uu)petesved (author)
- Irvine, JTS (author)
- Uppsala universitetFasta tillståndets fysik (creator_code:org_t)
Related titles
- In:PHYSICAL REVIEW B77:6, s. 064418-
- In:Physical Review B. Condensed Matter and Materials Physics77:6, s. 064418-1098-01211550-235X
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