uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Angle-resolved photoemission study of dispersive and narrow-band 5f states in UAsSe
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics. Department of Physics and Materials Science, Theoretical Magnetism.
Show others and affiliations
2006 (English)In: PHYSICAL REVIEW B, ISSN 1098-0121, Vol. 73, no 15, 155119- p.Article in journal (Refereed) Published
Abstract [en]

Single crystals of ferromagnetic UAsSe have been investigated by angle-resolved photoemission spectroscopy (ARPES) in the photon energy range between 20 eV and 110 eV. Electron kinetic energy intensities are collected as a function of angle and mapped onto the materials reciprocal space. Energy-band mapping has been carried out both for a several-eV-wide energy interval as well as for a narrow energy interval of less than 1 eV from the Fermi energy. The main features of the deduced energy bands can be explained by band-structure calculations. In the interval close to the Fermi energy, the very high energy and momentum resolution allows the observation of a narrow, yet dispersive photoemission peak mainly of 5f character situated within 50 meV of the Fermi energy. The Lorentzian linewidth was found to be about 35 meV with a dispersion of 30 meV along the Gamma to Z direction and 40 meV dispersion along the Gamma to X direction in the Brillouin zone. We have also found broader (linewidth about 70 meV), hybridized f-character bands with a conventional dispersion of about 1 eV along the Gamma to X and the Z to R directions in the Brillouin zone. An intriguing electronic structure emerges for UAsSe in which both relatively dispersive and narrow 5f bands are present. The occurrence of 5f-band dispersions stipulates that the electronic structure of UAsSe requires lattice periodicity to be taken into account.

Place, publisher, year, edition, pages
2006. Vol. 73, no 15, 155119- p.
Keyword [en]
ELECTRONIC-STRUCTURE, PHOTOELECTRON-SPECTROSCOPY, ELECTRICAL-RESISTIVITY, NEUTRON-DIFFRACTION, SINGLE-CRYSTALS, DELTA-PLUTONIUM, URANIUM, METALS, FERROMAGNETS, MAGNETISM
Identifiers
URN: urn:nbn:se:uu:diva-19331DOI: doi:10.1103/PhysRevB.73.155119OAI: oai:DiVA.org:uu-19331DiVA: diva2:47103
Available from: 2006-11-28 Created: 2006-11-28 Last updated: 2011-01-11

Open Access in DiVA

No full text

Other links

Publisher's full texthttp://link.aps.org/abstract/PRB/v73/e155119

Authority records BETA

Oppeneer, Peter

Search in DiVA

By author/editor
Oppeneer, Peter
By organisation
Department of PhysicsTheoretical Magnetism

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 353 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf