Sr2CrOsO6: End point of a spin-polarized metal-insulator transition by 5d band filling
2007 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 75, no 2, 020404- p.Article in journal (Refereed) Published
In the search for new spintronic materials with high spin polarization at room temperature, we have synthesized an osmium-based double perovskite with a Curie temperature of 725 K. Our combined experimental results confirm the existence of a sizable induced magnetic moment at the Os site, supported by band-structure calculations, in agreement with a proposed kinetic-energy-driven mechanism of ferrimagnetism in these compounds. The intriguing property of Sr2 CrOs O6 is that it is at the end point of a metal-insulator transition due to 5d band filling and at the same time ferrimagnetism and high-spin polarization are preserved.
Place, publisher, year, edition, pages
2007. Vol. 75, no 2, 020404- p.
strontium compounds, chromium compounds, ferrimagnetic materials, spin polarised transport, metal-insulator transition, magnetic moments
IdentifiersURN: urn:nbn:se:uu:diva-98063DOI: 10.1103/PhysRevB.75.020404ISI: 000243895100008OAI: oai:DiVA.org:uu-98063DiVA: diva2:173232