Abstract
The magnetic properties of PrMn2−xCuxSi2 () were studied by field-cooled and zero-field-cooled magnetization measurements in thetemperature range 5 K K in low external fields (5 mT) and by magnetic-field-dependent magnetization measurementsin fields up to 5.5 T. Substitution of Cu for Mn leads to a linear decrease in the lattice constantc and the unitcell volume V and a linear increase in the lattice constanta. Earlier neutron diffraction experiments showed that Pr does not order down to 1.6 K inPrMn2Si2 while the ferromagnetic Mn planes are ordered antiparallel along thec axis. With the increasing Cu content, the magnetization increases rapidly at lowtemperatures for the samples with . Cu substitution strongly changes the magnetic properties and leads to the magneticordering of the Pr sublattice. This is mainly deduced from the discussion of the valuesof the magnetic moments at low temperatures. Below the Curie temperaturesTC, the spins in the Mn sublattice are arranged parallel to the Pr sublattice. With increasing Cu,TC(x) has a maximumvalue of 155 K at x = 0.6 and decreases for samples with .
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.