Surface-state--surface-resonance transition on Ta(011)

Journal Article · Mon Jun 25 00:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.3151· OSTI ID:6521609

Kneedler, E; Skelton, D; Smith, K E; Kevan, S D ^[1]

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1. Department of Physics, University of Oregon, Eugene, OR (USA)

High-resolution angle-resolved-photoemission results are presented which probe in detail the transition of intrinsic surface bands on clean and hydrogen-covered Ta(011) from pure states to resonances. This is manifested by both a resonant broadening of {similar to}0.5 eV and a level shift. An unusual avoided crossing between surface and bulk bands is observed in which the surface and bulk characters are interchanged. The resultant hybridization of surface and bulk bands near the crossing has not previously been observed.

• DOE Contract Number: FG06-86ER45275
• OSTI ID: 6521609
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:26; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
BRILLOUIN ZONES
CLEANING
COVERINGS
ELECTRIC PROBES
ELEMENTS
EMISSION
ENERGY-LEVEL TRANSITIONS
HYBRIDIZATION
HYDROGEN
LINE BROADENING
METALS
NONMETALS
PHOTOEMISSION
PROBES
RESOLUTION
RESONANCE
SECONDARY EMISSION
SURFACE CLEANING
SURFACE FINISHING
SURFACE PROPERTIES
TANTALUM
TRANSITION ELEMENTS
ZONES