Magnetic reconstruction of the Gd(0001) surface

Journal Article · Mon Jul 19 00:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.444· OSTI ID:7369003

Tang, H; Weller, D; Walker, T G; Scott, J C; Chappert, C; Hopster, H; Pang, A W; Dessau, D S; Pappas, D P ^[1]

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1. Department of Physics and Institute for Surface and Interface Science, University of California, Irvine, California 92717 (United States) IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099 (United States) Stanford Electronics Laboratory, Stanford University, Stanford, California 94309 (United States) Naval Research Laboratory, Washington, D.C. 20375-5343 (United States)

The surface magnetism of Gd(0001) films is studied using spin resolved electron spectroscopies. Both a canted surface magnetization vector out of the plane of the film and an enhanced surface magnetic ordering temperature 60[plus minus]2 K higher than the bulk Curie temperature are observed. Our results show that the surface magnetic layer behaves as a separate entity from the bulk. The in-plane component of surface magnetization aligns ferromagnetically to the bulk. Spin resolved photoemission from the Gd 4[ital f] core levels shows [approx]65% spin polarization at 150 K, which extrapolates to [approx]91% at 0 K.

• OSTI ID: 7369003
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:3; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
665100 -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALIGNMENT
BEAMS
BREMSSTRAHLUNG
CURIE POINT
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTS
EMISSION
GADOLINIUM
MAGNETISM
MAGNETIZATION
METALS
PHOTOELECTRON SPECTROSCOPY
PHYSICAL PROPERTIES
POLARIZED BEAMS
RADIATIONS
RARE EARTHS
SECONDARY EMISSION
SPECTROSCOPY
SURFACE PROPERTIES
SYNCHROTRON RADIATION
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE