Magnetic and thermal property studies of RCrTeO6 (R=trivalent lanthanides) with layered honeycomb sublattices
Journal
Journal of Magnetism and Magnetic Materials
Journal Volume
370
Pages
13-17
Date Issued
2014
Author(s)
Abstract
We have investigated the magnetic ordering of the RCrTeO6 (R=Y, La, Tb and Er) samples comprising Cr3+ (S=3/2). The X-ray diffraction structure analysis revealed that all samples are a hexagonal structure with the space group P 3̄. The magnetic susceptibility χ(T) and heat capacity CP(T) measurement results reveal that both short range and long range antiferromagnetic (AFM) orderings exist in non-magnetic rare earth R=Y and La compounds. For isostructural compounds of R=Tb and Er, CP(T) curves show long range ordering at the same temperature as non-magnetic R=Y, which indicates that the super-super exchange of Cr spins dominates. For R elements of Tb and Er with large spins sitting between honeycomb sublattices composed of CrO6-TeO6 octahedra, the two sublattices of R and Cr appear to be independently magnetic. © 2014 Elsevier B.V.
Publisher
Elsevier
Type
journal article