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Order–disorder induced magnetic structures of FeMnP0.75Si0.25
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- Hudl, Matthias (author)
- Uppsala universitet,Fasta tillståndets fysik,Department of Engineering Sciences, Uppsala University
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- Nordblad, Per (author)
- Uppsala universitet,Fasta tillståndets fysik,Department of Engineering Science, Uppsala University
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- Björkman, Torbjörn, 1977- (author)
- Uppsala universitet,Materialteori,Department of Physics and Astronomy, Uppsala University
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- (creator_code:org_t)
- 2011
- 2011
- English.
- In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 83:13, s. 134420-
- Journal article (peer-reviewed)
Abstract
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- We report on the synthesis and structural characterization of the magnetocaloric FeMnP0.75Si0.25 compound. Two types of samples (as quenched and annealed) were synthesized and characterized structurally and magnetically. We have found that minute changes in the degree of crystallographic order causes a large change in the magnetic properties. The annealed sample, with higher degree of order is antiferromagnetic with a zero net moment. The as-quenched sample has a net moment of 1.26 μB /f.u. and ferrimagnetic-like behavior. Theoretical calculations give rather large values for the Fe and Mn magnetic moments, both when occupied on the tetrahedral and pyramidal lattice site. The largest being the Mn moment for the pyramidal site reaches values as high as 2.8 μB /atom.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Keyword
- NATURAL SCIENCES
- NATURVETENSKAP
- Inorganic chemistry
- Oorganisk kemi
- Kemi med inriktning mot oorganisk kemi
- Chemistry with specialization in Inorganic Chemistry
- Teknisk fysik med inriktning mot fasta tillståndets fysik
- Engineering Science with specialization in Solid State Physics
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- art (subject category)
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- Vitos, Levente
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