Ultrathin epitaxial Fe films in vicinal GaAs(001): A study by spin-resolved photoelectron spectroscopy

Zhang, T; Spangenberg, M; Greig, D; Takahashi, N; Shen, T; Matthew, JAD; Cornelius, S; Rendall, M; Seddon, SE

Abstract

Thin epitaxial Fe films have been grown on vicinal GaAs(001) substrates and their remanent magnetic properties and the degree of substrate atom diffusion investigated using synchrotron-based photoelectron spectroscopy. The vicinal Fe films, though exhibiting greater As diffusion than their singular homologues, displayed better film quality both from the structural and the magnetic points of view. The spin-resolved valence spectra of the vicinal films resemble those for crystalline bulk Fe at lower film thicknesses than for singular films.

• Journal Article Type: Article
• Publication Date: Feb 12, 2001
• Deposit Date: Aug 23, 2007
• Publicly Available Date: Aug 23, 2007
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Electronic ISSN: 1077-3118
• Publisher: AIP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 78
• Issue: 7
• Pages: 961-963
• DOI: https://doi.org/10.1063/1.1345820
• Keywords: Iron, ultraviolet photoelectron spectra, metallic epitaxial layers, magnetic epitaxial layers, spin polarised electron emission, remanence, ferromagnetic materials, valence bands
• Publisher URL: http://dx.doi.org/10.1063/1.1345820
• Related Public URLs: http://www.aip.org/; http://apl.aip.org/