Abstract
Polycrystalline U(Ni1−xCux)2Si2 solid solutions have a tetragonal ThCr2Si2 type crystal structure. Antiferromagnetic (AF) transitions, observed by measurements of a.c. susceptibility for x = 0.10, 0.25, and 0.50, are confirmed by neutron diffraction. The AF structures are of type I (+ − + −) with k = (0,0,1) below T0 = 108±5 K for x = 0.10 (with a possible incommensurate phase at 108–135 K), TN = 151±3 K for x = 0.25, and TN = 150±2 K for x = 0.50. The a.c. susceptibility transition for x = 0.75 is associated with the three magnetic structures observed by neutron diffraction: AF I, ferrimagnetic (+ + −) and AF IA (+ + − −), with k = (0,0,1), (0,0,23) and (0,0,12), and TN = 120±3, 115±4 and 110±3 K respectively. Including previous neutron results on single-crystal UNi2Si2 and powdered UCu2Si2, a magnetic phase diagram of the U(Ni1−xCux)2Si2 system is proposed and discussed.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
