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), Vol. 71:3; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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