Work

d to s charge conversion at transition metal surfaces

Year: 1984

Type: article

Abstract: The authors have analysed the self-consistent charge density of a seven-layer tungsten (001) slab by calculating contributions to the 4f core eigenvalue difference between surface and bulk atoms. This analysis shows that at the surface, charge is positioned farther from the nucleus than in the bulk-implying d to s charge conversion at the surface. This conversion is consistent with a monotonic change in configuration from bulk to free atoms; with Pettifor's theory (1977, 1978) of transition metal cohesion; with increased magnetic moments at transition metal surfaces; and with the possibility of magnetic atoms on the surface of paramagnetic hosts.

Source: Journal of Physics C Solid State Physics

DOI: 10.1088/0022-3719/17/3/004

Authors: G A Benesh, R Haydock

Institution: University of Cambridge

Language: English

Topic: Surface and Thin Film Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, Baylor University, Division of Materials Research

Award: Electronic Processes at Metal Surfaces (Materials Research)