Spin polarized photoemission from thin GaAs photocathodes

Research output: Contribution to journalArticlepeer-review

Abstract

The spin polarization of electrons photoemitted from negative electron affinity (NEA) thin GaAs photocathodes has been measured by means of Mott scattering. Thin epitaxial layers have been grown on different substrates with either small or large lattice mis-match. In this last case the layer results considerably strained allowing the emission of highly (more than 50%) polarized electrons. The effect of the strain relaxation due to sample annealing on the beam polarization is also discussed.

Original languageEnglish
Pages (from-to)505-509
Number of pages5
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume76
Issue numberC
DOIs
Publication statusPublished - 29 Dec 1995
Externally publishedYes

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