Oxygen induced suppression of the surface magnetization of Gd(0001)

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2802· OSTI ID:284498

McIlroy, D N; Waldfried, C; Li, D; Pearson, J; Bader, S D; Huang, D; Johnson, P D; Sabirianov, R F; Jaswal, S S; Dowben, P A ^[1]

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1. The Department of Physics and Astronomy and the Center for Materials Research and Analysis, Behlen Laboratory of Physics, The University of Nebraska at Lincoln, Lincoln, Nebraska 68588-0111 (United States)

The effects of oxygen adsorption on the surface magnetization of Gd(0001) have been determined by measuring the polarization of the Gd 4{ital f} core levels and the oxygen induced states with spin-resolved photoemission. Calculations of the partial density of states of O/Gd(0001) using the LMTO-ASA method support the photoemission measurements which indicate that oxidation occurs at low coverages. The loss of surface magnetic order with oxygen exposure is explained in terms of decreasing indirect coupling. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Brookhaven National Laboratory
• DOE Contract Number: AC02-76CH00016; FG02-86ER45262; W-31109-ENG-38
• OSTI ID: 284498
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADSORPTION
ELECTRONIC STRUCTURE
ENERGY-LEVEL DENSITY
GADOLINIUM
MAGNETIZATION
OXYGEN
PHOTOEMISSION
SELF-CONSISTENT FIELD
SURFACE STATES
SURFACES