Photoemission and electronic structure of iron
Photoemission studies of the valence-band structure of iron are carried out in the photon energy range 11.8 < or = h ..omega.. < or = 21.2 eV. A prominent peak at 0.58 +- 0.03 eV and a less pronounced maximum at 2.4 +- 0.2 eV below the observed Fermi level in the energy-distribution curve at h ..omega.. = 21.2 eV are shown to characterize the profile of the occupied states. Our results are compared with other experimental data and with band-structure calculations. Soft-x-ray appearance potential spectra, x-ray continuum isochromats, and the present ultraviolet-photoemission spectra, when taken together, suggest an upper limit of 1.9 eV for the exchange splitting of the spin-up and spin-down d bands. Finally, we have discussed the results of photoelectron spin-polarization measurements. Previous interpretations of these experiments indicated apparent contradiction with the Slater-Stoner-Wohlfarth itinerant-electron band theory of ferromagnetism.
- Research Organization:
- Sektion Physik der Universitat Munchen, Geschwister-Scholl-Pl. 1, D-8000 Munchen 22, Federal Republic of Germany
- OSTI ID:
- 7142940
- Journal Information:
- Phys. Rev., B; (United States), Journal Name: Phys. Rev., B; (United States) Vol. 14:8; ISSN PLRBA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photoemission spectra from conduction bands and core levels of sputter-deposited tantalum films
Inverse-photoemission measurement of iron oxides on polycrystalline Fe
Related Subjects
360102* -- Metals & Alloys-- Structure & Phase Studies
360106 -- Metals & Alloys-- Radiation Effects
ABSORPTION SPECTRA
BEAMS
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
GAMMA RADIATION
IONIZING RADIATIONS
IRON
LEPTON BEAMS
METALS
MEV RANGE
MEV RANGE 01-10
PARTICLE BEAMS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATIONS
SPECTRA
TRANSITION ELEMENTS