Magnetic reconstruction of the Gd(0001) surface

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 res...

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Bibliographic Details
Published in:Physical review letters 1993-07, Vol.71 (3), p.444-447
Main Authors: TANG, H, WELLER, D, WALKER, T. G, SCOTT, J. C, CHAPPERT, C, HOPSTER, H, PANG, A. W, DESSAU, D. S, PAPPAS, D. P
Format: Article
Language:English
Subjects:
665100 > Nuclear Techniques in Condensed Matter Physics > (1992-)
ALIGNMENT
Applied sciences
BEAMS
BREMSSTRAHLUNG
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Condensed matter: electronic structure, electrical, magnetic, and optical properties
CURIE POINT
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTS
EMISSION
Exact sciences and technology
GADOLINIUM
Magnetic properties and materials
Magnetic properties of surface, thin films and multilayers
MAGNETISM
MAGNETIZATION
MATERIALS SCIENCE
METALS
Metals. Metallurgy
PHOTOELECTRON SPECTROSCOPY
PHYSICAL PROPERTIES
Physics
POLARIZED BEAMS
RADIATIONS
RARE EARTHS
SECONDARY EMISSION
SPECTROSCOPY
Surface magnetism
SURFACE PROPERTIES
SYNCHROTRON RADIATION
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE 360104 > Metals & Alloys-- Physical Properties
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Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.71.444