Electronic structure and magnetism of the Rh[l brace]001[r brace] surface

Journal Article · Sun May 15 00:00:00 EDT 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.49.14081· OSTI ID:7283986

Wu, S C ^[1]; Garrison, K ^[2]; Begley, A M; Jona, F ^[3]; Johnson, P D ^[2]

---

1. Department of Materials Science and Engineering, State University of New York, Stony Brook, New York 11794-2275 (United States) Physics Department, Peking University, Beijing 100871 (China)
2. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
3. Department of Materials Science and Engineering, State University of New York, Stony Brook, New York 11794-2275 (United States)

Spin-polarized-photoemission experiments on clean Rh[l brace]001[r brace] show that the surface resonance at the [ital [bar M]] point (0.60 eV binding energy) in the surface Brillouin zone is weakly ferromagnetic at room temperature. The effect increases with decreasing temperature of the surface and disappears when the surface is covered with 0.5 layer of oxygen. The spin- and angle-resolved photoemission spectra exhibit very small exchange splitting, hence the magnetic moment of the surface atoms cannot be reliably determined, but is estimated to lie between 0.1 [mu][sub [ital B]] and 0.2 [mu][sub [ital B]].

• DOE Contract Number: FG02-86ER45239
• OSTI ID: 7283986
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 49:19; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
AMBIENT TEMPERATURE
BINDING ENERGY
BRILLOUIN ZONES
ELECTRONIC STRUCTURE
ELEMENTS
EMISSION
ENERGY
FERROMAGNETISM
MAGNETIC MOMENTS
MAGNETISM
METALS
PHOTOEMISSION
PLATINUM METALS
RHODIUM
SECONDARY EMISSION
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
ZONES