Substrate dependence of Pt4 electronic properties

We show through first-principles calculations that the electronic properties of Pt4 clusters can be tuned by adsorption on substrates with different electronic valence characters. Pt clusters exhibit a metallic character on γ-Al2O3(111) and insulator properties on CaZrO3(001). The noted difference i...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2013-06, Vol.25 (22), p.222001-222001
Main Authors: Arevalo, Ryan Lacdao, Kishi, Hirofumi, Padama, Allan Abraham Bustria, Moreno, Joaquin Lorenzo Valmoria, Kasai, Hideaki
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic structure of nanoscale materials : clusters, nanoparticles, nanotubes, and nanocrystals
Exact sciences and technology
Impurity and defect levels
energy states of adsorbed species
Physics
Surface and interface electron states
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Summary:We show through first-principles calculations that the electronic properties of Pt4 clusters can be tuned by adsorption on substrates with different electronic valence characters. Pt clusters exhibit a metallic character on γ-Al2O3(111) and insulator properties on CaZrO3(001). The noted difference indicates the role of the electronic valence states of the substrate atoms that directly bond with Pt.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/25/22/222001