Abstract
The modification of the room-temperature surface magnetic moment of Ni(110) by a c(2×2)S overlayer has been investigated using spin-polarized inverse photoemission (SPIPE) and magnetic circular dichroism (MCD) in core-level photoemission. SPIPE measurements, which are mostly sensitive to the spin contribution, indicate a reduction of the spin polarization to (44 ± 19)% of the clean surface value. The MCD, which is mostly sensitive to the orbital moment, is reduced to (25 ± 3)%. This apparent difference in the sensitivity to the S overlayer can in part be explained by considering the different sampling depths of the two techniques. The results provide support for theoretical predictions that the clean surface magnetic moment of Ni(110), in both the spin and orbital contributions, is enhanced compared to the bulk.
| Original language | English |
|---|---|
| Article number | 064407 |
| Pages (from-to) | 644071-644074 |
| Number of pages | 4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 64 |
| Issue number | 6 |
| Publication status | Published - 1 Aug 2001 |
Research Beacons, Institutes and Platforms
- National Graphene Institute