Abstract
The electronic ground state of Ca3LiOsO6 was recently considered within an intermediate coupling regime that revealed J=3/2 spin-orbit entangled magnetic moments. Through inelastic neutron scattering and density functional theory we investigate the magnetic interactions and probe how the magnetism is influenced by the change in hierarchy of interactions as we move from Ca3LiOsO6 (5d3) to Ca3LiRuO6 (4d3). An alteration of the spin gap and ordered local moment is observed, however the magnetic structure, Néel temperature, and exchange interactions are unaltered. To explain this behavior it is necessary to include both spin-orbit coupling and hybridization, indicating the importance of an intermediate coupling approach when describing 5d oxides.
| Original language | English |
|---|---|
| Article number | 184426 |
| Journal | Physical Review B |
| Volume | 96 |
| Issue number | 18 |
| DOIs | |
| State | Published - Nov 22 2017 |
Funding
This research used resources at the High Flux Isotope Reactor and Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. The work was supported in part by the Japan Society for the Promotion of Science (JSPS) through Grants-in-Aid for Scientific Research (15K14133 and 16H04501) and JSPS Bilateral Open Partnership Joint Research Projects. Y.G.S. acknowledges support from the National Natural Science Foundation of China (Grants No. 11474330 and No. 11774399). This research used resources at the High Flux Isotope Reactor and Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. The work was supported in part by the Japan Society for the Promotion of Science (JSPS) through Grants-in-Aid for Scientific Research (15K14133 and 16H04501) and JSPS Bilateral Open Partnership Joint Research Projects. Y.G.S. acknowledges support from the National Natural Science Foundation of China (Grants No. 11474330 and No. 11774399).