Photoemission study of uranium compounds with MgAgAs structure

Journal Article · Mon May 01 04:00:00 EDT 1989 · J. Vac. Sci. Technol., A; (United States)

DOI:https://doi.org/10.1116/1.576061· OSTI ID:6294460

Hoechst, H; Tan, K; Buschow, K H.J.

Synchrotron radiation photoemission spectroscopy has been used to investigate the electronic structure of the intermetallic compounds UNiSn, URhSb, and UPtSn. All compounds show the same typical valence-band structure. Transition-metal d-like density of states (DOS) is removed from the Fermi-level region deeper into the valence band with maxima at /similar to/2 eV for UNiSn and at /similar to/2.8 and /similar to/4.6 eV for URhSb and UPtSn. Resonant photoemission at the U 5d threshold energy around h..nu..approx. =98 eV has been used to project the U 5 f valence-band DOS. In all compounds the 5 f states are close to the Fermi energy with a full width at half-maximum ranging from 1.1 eV for UNiSn to 1.6 eV for UPtSn. Our results for UNiSn are in good agreement with recent partial valence-band DOS calculations.

• Research Organization: Synchrotron Radiation Center, University of Wisconsin-Madison, Stoughton, Wisconsin 53589-3097
• OSTI ID: 6294460
• Journal Information: J. Vac. Sci. Technol., A; (United States), Journal Name: J. Vac. Sci. Technol., A; (United States) Vol. 7:3; ISSN JVTAD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE COMPOUNDS
ANTIMONY COMPOUNDS
BAND THEORY
DATA
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
EMISSION
ENERGY LEVELS
EXPERIMENTAL DATA
FERMI LEVEL
INFORMATION
NICKEL COMPOUNDS
NUMERICAL DATA
PHOTOEMISSION
REFRACTORY METAL COMPOUNDS
RHODIUM COMPOUNDS
SECONDARY EMISSION
SPECTROSCOPY
TIN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ULTRAHIGH VACUUM
URANIUM COMPOUNDS
VALENCE