Direct observation of spin-split electronic states of Pd at the Pd(111)/Fe(110) interface
- 18 February 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 66 (7) , 942-945
- https://doi.org/10.1103/physrevlett.66.942
Abstract
A spin-split interface state in the Pd 4dband of epitaxial Pd(111) films on Fe(110) has been identified in spin-resolved and spin-integrated photoemission. It is most pronounced for Pd thicknesses between 1 and 2 atomic layers (AL), with an exchange splitting of about 130±50 meV that is inverted compared to that of Fe. Bulklike states of Pd(111) at Pd thicknesses between 1.5 and 2.7 AL also appear spin polarized, but without a resolvable exchange splitting. Above 2.7-AL Pd thickness no spin polarization attributable to Pd is evident.Keywords
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