Two-photon photoemission from CoO layers on Ir(1 0 0). (20th January 2016)

• Record Type: Journal Article
• Authors: Otto, Sebastian; Fauster, Thomas
• Is Part Of: Journal of physics. Volume 28:Number 5(2016)
• Publication Date: 2016-01-20
• Subjects: cobalt oxide -- electronic states -- work function -- two-photon photoemission; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/0953-8984/28/5/055001
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: Two-photon photoelectron spectroscopy is used to study the unoccupied electronic states of cobalt oxide layers on Ir(1 0 0). For thicker layers of (1 0 0) orientation the conduction band minimum is found 2 eV above the Fermi level. Layers with (1 1 1) orientation and thickness 4 bilayers show a peak around 3.4 eV energy and no evidence for the conduction band minimum. This is attributed to the metallic character of thin CoO(1 1 1) layers.