Magnetism in the system Ce1−xLaxRh3B2 (abstract)

Publisher Website
Google Scholar
Abstract
The RRh3B2 (R=La to Gd) compounds form in the hexagonal CeCo3B2‐type structure. The La containing compound in this series has been reported to be a superconductor while CeRh3B2 orders magnetically with Ce being in a nearly 3+ state. The magnetic ordering in CeRh3B2 is presumed to arise from the hybridization of nearly localized 4f electrons of Ce with sp conduction electrons or the 4d band of Rh or from the hybridization of the two. We have examined the magnetic behavior of the system Ce1−xLaxRh3B2 (x=0.0, 0.2, 0.4, 0.6, and 0.8). All these compounds (except LaRh3B2) also order magnetically. The Curie temperature decreases from about 115 K for pure Ce compound to 2.3 K for Ce0.2La0.8Rh3B2. The magnetic moments per formula unit remains nearly constant for 0<xx. From the values of the effective paramagnetic moments and the saturation moments we find that magnetism, having the same origin, persists in Ce1−xLaxRh3B2 for x ranging from 0.0 to 0.8. The La‐rich side is being investigated for the occurrence of superconductivity. Details will be published elsewhere.

This publication has 2 references indexed in Scilit: