Abstract
Angle-resolved photoemission is used to determine the temperature-dependent electronic properties of ferromagnetic bulk Gd along \ensuremath{\Gamma}-A of the three-dimensional Brillouin zone. The ${\mathrm{\ensuremath{\Delta}}}_{2}$ band exchange splitting (0.85 eV) and dispersion (0.5 eV) are in reasonably good agreement with self-consistent local-spin-density--approximation calculations. The conduction-band magnetic exchange splitting vanishes at the Curie temperature following a conventional power law with a Heisenberg critical exponent. This ``Stoner-model'' collapse of the exchange splitting is in striking contrast to corresponding results observed in transition-metal ferromagnets.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
