41lanthanum‐based dielectric films analyzed by spectroscopic ellipsometry, X‐ray reflectometry and X‐ray photoelectron spectroscopy

Autor: M. C. Hugon, M. Gaillet, V. Edon, Christophe Cardinaud, C. Eypert, Olivier Durand
Rok vydání: 2008
Předmět:
Zdroj: physica status solidi c. 5:1206-1209
ISSN: 1610-1642
1862-6351
Popis: Composition and interfacial properties of LaAlO3/Si thick (50 nm) and thin (7 nm) films were accessed by Far Ultra-Violet Spectroscopic Ellipsometry (FUV-SE), X-Ray Reflectometry (XRR) and X-Ray Photoelectron Spectroscopy (XPS). FUV-SE correlated to XRR analysis shows that LaAlO3/Si thick and thin films should be modelled by three-layer stacks using Tauc-Lorentz dispersion law. Annealing effects of LaAlO3/Si thin films such as increase of interfacial layer thickness and intermixing between high-κ oxide and Si were demonstrated by FUV-SE, and confirmed by XRR and XPS measurements. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze: OpenAIRE