| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1591785 | Solid State Communications | 2014 | 4 Pages |
•Co 3s exchange splitting, the valence bands and the chemical shifts in RCo5−xMx.•The existence of the local magnetic moments on Co sites.•Co 3d band partial filling due to hybridization with R 5d6s and M 3sp, 4sp states.
The electronic properties of RCo5−xMx (R=Er, Sm, Tm; M=Si, Ga, Al; x=0 and 1) compounds were investigated by X-ray photoelectron spectroscopy (XPS). The study was focused on the Co 3s exchange splitting, the valence bands and chemical shifts of the elements from the analyzed compounds. The Co 2p3/2 core-level chemical shifts were described by means of the Auger parameters and Wagner plot. The hybridization between the R 5d6s and M 3sp and 4sp states and Co 3d states leads to a partial filling of the Co 3d band and to a decrease of the Co magnetic moments in comparison with the value in pure Co metal, in good agreement with the magnetic measurements.
