Order–disorder induced magnetic structures of FeMnP0.75Si0.25
2011 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 83, no 13, 134420Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2011. Vol. 83, no 13, 134420
Natural Sciences Inorganic Chemistry Engineering and Technology
Research subject Chemistry with specialization in Inorganic Chemistry; Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-109665DOI: 10.1103/PhysRevB.83.134420ISI: 000291973200006OAI: oai:DiVA.org:uu-109665DiVA: diva2:273424