Ultrathin films of Rh on Au l brace 001 r brace and Rh on Ag l brace 001 r brace : Growth mode and magnetism

Journal Article · Mon Jul 15 04:00:00 EDT 1991 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.44.1438· OSTI ID:5401098

Li, H; Wu, S C; Tian, D; Li, Y S; Quinn, J; Jona, F ^[1]

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1. College of Engineering and Applied Science, State University of New York, Stony Brook, NY (USA)

Deposition of minute amounts of Rh on a clean and reconstructed Au{l brace}001{r brace} surface destroys the reconstruction and yields a 1{times}1 structure. Prolonged deposition produces epitaxial but not pseudomorphic films of Rh with the bulk equilibrium fcc structure. Deposition of Rh on a clean Ag{l brace}001{r brace} surface produces overlayers which are partially covered by or intermixed with Ag, but which are pseudomorphic with the Ag{l brace}001{r brace} substrate. Photoemission experiments in the very early stages of overlayer growth reveals a 4.1{plus minus}0.3 eV splitting of the 4{ital s} levels of Rh, which is not observed in thick Rh films. The 4{ital s} splitting is explained by the presence of a magnetic moment on the Rh atoms and is related to recent theoretical predictions of ferromagnetism in a monolayer of Rh on either Ag{l brace}001{r brace} or Au{l brace}001{r brace}.

• DOE Contract Number: FG02-86ER45239
• OSTI ID: 5401098
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 44:3; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
AUGER ELECTRON SPECTROSCOPY
COHERENT SCATTERING
CRYSTAL GROWTH
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DEPOSITION
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELECTRON DIFFRACTION
ELECTRON SPECTROSCOPY
ELEMENTS
EQUILIBRIUM
FCC LATTICES
FERROMAGNETISM
FILMS
GOLD
MAGNETIC PROPERTIES
MAGNETISM
METALS
PHOTOELECTRON SPECTROSCOPY
PHYSICAL PROPERTIES
PLATINUM METALS
RADIATIONS
RHODIUM
SCATTERING
SILVER
SPECTROSCOPY
SURFACES
THIN FILMS
TRANSITION ELEMENTS
ULTRAHIGH VACUUM
ULTRAVIOLET RADIATION