| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1862446 | Physics Letters A | 2012 | 5 Pages |
The rare-earth chain nickelates R2R2BaNiO5 (R=NdR=Nd, Sm, Eu, Gd, Dy, Ho, Er, and Tm) were studied by means of the spectroscopic Er probe. The magnetic ordering was registered and the splitting of the ground-state Kramers doublet of Er3+ as a function of temperature was measured for all the compounds studied. This information was used to analyze a possible orientation of ordered magnetic moments of the nickel ions. The magnetic structures found for R=HoR=Ho, Dy, Nd, Gd, Tm, and Er are in good agreement with literature data, those for R=SmR=Sm and Eu are predicted for the first time.
► Spectroscopic method was applied to study magnetic structure of R2R2BaNiO5 compounds. ► Splitting Δ of the ground state Kramers doublet of the Er3+ probe ion was measured. ► Δ is sensitive to the direction of internal magnetic field in the AFM-ordered state. ► The magnetic structures for R=SmR=Sm and Eu were determined for the first time.
