Cd-doping effects in Ce2MIn8 (M = Rh and Ir) heavy fermion compounds

Physics – Condensed Matter – Strongly Correlated Electrons

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

Low temperature magnetic properties of Cd-doped Ce2MIn8 (M = Rh and Ir) single crystals are investigated. Experiments of temperature dependent magnetic susceptibility, heat capacity and electrical resistivity measurements revealed that Cd-doping enhances the antiferromagnetic (AFM) ordering temperature from TN = 2.8 K (x = 0) to TN = 4.8 K (x = 0.21) for Ce2RhIn8-xCdx and induces long range AFM ordering with TN = 3.8 K (x = 0.21) for Ce2IrIn8-xCdx. Additionally, X-ray and neutron magnetic scattering studies showed that Cd-doped samples present below TN a commensurate antiferromagnetic structure with a propagation vector (1/2,1/2,0). The resolved magnetic structures for both compounds indicate that the Cd-doping tends to rotate the direction of the ordered magnetic moments toward the ab-plane. This result suggests that the Cd-doping affects the Ce3+ ground state single ion anisotropy modifying the crystalline electrical field (CEF) parameters at the Ce3+ site. Indications of CEF evolution induced by Cd-doping were also found in the electrical resistivity measurements. Comparisons between our results and the general effects of Cd-doping on the related compounds CeMIn5 (M = Co, Rh and Ir) confirms the claims that the Cd-doping induced electronic tuning is the main effect favoring AFM ordering in these compounds.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Cd-doping effects in Ce2MIn8 (M = Rh and Ir) heavy fermion compounds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cd-doping effects in Ce2MIn8 (M = Rh and Ir) heavy fermion compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cd-doping effects in Ce2MIn8 (M = Rh and Ir) heavy fermion compounds will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-307669

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.