Photoelectric effect in uranium

C. P. Opeil, R. C. Albers, K. B. Blagoev, M. Gulácsi, J. C. Lashley, P. B. Littlewood, M. E. Manley, B. Mihaila, P. S. Riseborough, R. K. Schulze, D. J. Thoma, H. M. Volz, J. L. Smith

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We report the work function Φ for single and polycrytalline α-uranium over the temperature range 173≤T≥873K. Photoemission spectroscopy (PES) measurements were made at energies 21 eV and 40 eV. Surfaces were prepared in situ by sputter/annealing cycles under UHV conditions. Like most metals the polycrystalline specimens showed little temperature dependence, the change in the work function ΔΦ = 1 %. Conversely the single crystal changed by 5 % over the same temperature range. A sudden temperature arrest in ΔΦ centered at 500 K was detected in the single crystal. This arrest coincides with the ductile-to-brittle (dilation change) transformation temperature.

Original languageEnglish
Pages (from-to)56-57
Number of pages2
JournalJournal of the Physical Society of Japan
Volume75
Issue numberSUPPL.
DOIs
StatePublished - 2006
Externally publishedYes

Keywords

  • Photoemission
  • α-U

Fingerprint

Dive into the research topics of 'Photoelectric effect in uranium'. Together they form a unique fingerprint.

Cite this