Skip to main content
eScholarship
Open Access Publications from the University of California

UC Irvine

UC Irvine Previously Published Works bannerUC Irvine

Effect of rare-earth doping in R CrSb3 (R=La, Pr, Sm, and Gd)

  • Author(s): Jackson, DD;
  • Fisk, Z
  • et al.
Abstract

We report on the electrical resistivity and magnetic susceptibility of La or Gd doped R CrSb3 (R=La, Pr, Sm, and Gd). Single crystals were grown by increasing the nominal dopant by 25%. In general, two magnetic ordering transitions are found, Tc1 is attributed to ferromagnetic ordering of the itinerant Cr sublattice, and, at lower temperatures, Tc2 is attributed to ordering of the localized rare-earth sublattice. Alloying on the rare-earth site varies the de Gennes factor, DG= (g-1)2 J (J+1), and d Tc1 d (DG) =-2 K, while d Tc2 d (DG) =5 K. These ordering temperatures are found to converge at GdCrSb3, where a single ferrimagnetic transition is found at Tc2 =86 K due to an antialignment of the itinerant Cr magnetic sublattice and the localized rare-earth magnetic sublattice. Initially, for DG<3.5, the two magnetic sublattices order in a ferromagnetic ground state, and the paramagnetic Weiss temperature decreases at the same rate as Tc1. But for DG>4.5, the rare-earth magnetic sublattice antialigns with respect to the Cr sublattice, and the Weiss temperature decreases five times as fast. In the region between (3.5

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Main Content
For improved accessibility of PDF content, download the file to your device.
Current View