Published September 1998 | Version v1
Journal article Metadata-only

Observation of a Ferromagnetic-to-Paramagnetic Phase Transition on a Ferromagnetic Surface Using Spin-Polarized Photoelectron Diffraction: Gd(0001)

Creators

  • 1. Department of Physics, University of California, Davis, California 95616 (United States)
  • 2. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  • 3. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

Description

The ferromagnetic system Gd(0001) has been studied by spin-polarized photoelectron diffraction, using the highly spin-polarized 7S and 9S multiplet peaks in Gd 4s and 5s spectra. Temperature-dependent spin asymmetries derived from the 7S-to-9S peak intensity ratios exhibit pronounced changes over a range of temperatures spanning both the bulk Curie temperature Tcb and a surface transition temperature Tcs that is found to be ∼85 K above Tcb . The surface transition also appears to span several atomic layers. copyright 1998 The American Physical Society

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
81
Journal Issue
11
Journal Page Range
p. 2360-2363
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
30006355
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ADVANCED LIGHT SOURCE; CURIE POINT; DIFFRACTION; FERROMAGNETIC MATERIALS; GADOLINIUM; PHASE TRANSFORMATIONS; PHOTOELECTRON SPECTROSCOPY; POLARIZATION; SPIN; SURFACES; TEMPERATURE DEPENDENCE
Descriptors DEC
ANGULAR MOMENTUM; COHERENT SCATTERING; ELECTRON SPECTROSCOPY; ELEMENTS; MAGNETIC MATERIALS; MATERIALS; METALS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; RADIATION SOURCES; RARE EARTHS; SCATTERING; SPECTROSCOPY; STORAGE RINGS; SYNCHROTRON RADIATION SOURCES; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE