Abstract

Numerous equiatomic uranium—transition metal ternary compounds of general formula UT(Si, Ge) have been identified in the orthorhombic CeCu 2-type structure. The magnetic characteristics of these compounds with T = Co, Ni, Ru, Rh, Pd, Ir and Pt have been studied in the range 4.2–300 K. Some systematic dependences in their magnetic behaviour have been revealed. Paramagnetism was observed for UCo(Si, Ge) down to liquid helium temperature. Typical spin-fluctuation susceptibility variation at low temperatures has been found for URu(Si, Ge) and UIrSi. Magnetic ordering was observed for all remaining compounds studied. UNi(Si, Ge) probably show first-order antiferromagnetic transitions, URh(Si, Ge) are itinerant-electron ferromagnets, and UPd(Si, Ge) and UPt(Si, Ge) exhibit some magnetic transitions at low temperatures and behave as local-moment compounds at higher temperature range. The observed magnetic characteristics of the series UT(Si, Ge) reflect the 5f origin of magnetic moment, however more or less influenced by the hybridization between the U-5f and ligand electrons.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.