The Interfacial Characteristics of Ba0.6Sr0.4TiO3 Films Deposited by Radio Frequency Magnetron Sputtering

Abstract:

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Ba0.6Sr0.4TiO3 (BST) thin films deposited on Pt/Ti/SiO2/Si substrates by radio frequency magnetron sputtering and crystallized by rapid thermal annealing (RTA) exhibit much thinner BST/Pt interfacial transition layer and higher dielectric properties than the films crystallized by conventional thermal annealing (CTA). HRTEM observations show that the transition layer is 2-3nm thick for RTA and 4-5nm thick for CTA. XPS investigations display that the transition layer is composed of perovskited BST phase and non-perovskited BST phase, and RTA corresponds to much less non-perovskited BST phase than CTA. The reason for non-perovskited BST phase and the dielectric properties of BST films are also presented.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

374-376

DOI:

10.4028/www.scientific.net/KEM.336-338.374

Citation:

J. X. Liao et al., "The Interfacial Characteristics of Ba0.6Sr0.4TiO3 Films Deposited by Radio Frequency Magnetron Sputtering", Key Engineering Materials, Vols. 336-338, pp. 374-376, 2007

Online since:

April 2007

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Price:

$35.00

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