Dielectric tunability of Ba xSr 1-xTiO 3 thin films grown on a compliant substrate

Hua Ping Wu; Bin Xu; Xiao Yan Lu

doi:10.1109/SPAWDA.2011.6167285

Dielectric tunability of Ba _xSr _1-xTiO ₃ thin films grown on a compliant substrate

Hua Ping Wu^*
, Bin Xu
, Xiao Yan Lu

^*Corresponding author for this work

Zhejiang University of Technology
School of Civil Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The phase transition temperature and dielectric tunability of Ba _xSr _1-xTiO ₃ (BST) thin films grown on a compliant substrate are theoretically investigated using the Ginzburg-Landau-Devonshire theory combined with the Timosheko elastic theory by considering thin films' and substrates' thickness-dependent relaxation of lattice-mismatch strain. Our results indicate that the dielectric characteristics of BST thin films deposited on compliant substrates are different from those of their bulk counterparts. The ferroelectricity and dielectric performances of the BST thin films can be modulated by changing the thickness ratio of the film to substrate or the stress state. This is an effectively theoretical guidance for the property optimization of ferroelectric thin films used in microwave devices.

Original language	English
Title of host publication	Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011
Pages	449-452
Number of pages	4
DOIs	https://doi.org/10.1109/SPAWDA.2011.6167285
State	Published - 2011
Externally published	Yes
Event	2011 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2011 - Shenzhen, Guangdong, China Duration: 9 Dec 2011 → 11 Dec 2011

Publication series

Name	Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011

Conference

Conference	2011 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2011
Country/Territory	China
City	Shenzhen, Guangdong
Period	9/12/11 → 11/12/11

Keywords

Compliant substrate
Dielectric tenability
Ferroelectric thin film
Stress control

Access to Document

10.1109/SPAWDA.2011.6167285

Cite this

Wu, H. P., Xu, B., & Lu, X. Y. (2011). Dielectric tunability of Ba _xSr _1-xTiO ₃ thin films grown on a compliant substrate. In Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011 (pp. 449-452). Article 6167285 (Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011). https://doi.org/10.1109/SPAWDA.2011.6167285

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title = "Dielectric tunability of Ba xSr 1-xTiO 3 thin films grown on a compliant substrate",

abstract = "The phase transition temperature and dielectric tunability of Ba xSr 1-xTiO 3 (BST) thin films grown on a compliant substrate are theoretically investigated using the Ginzburg-Landau-Devonshire theory combined with the Timosheko elastic theory by considering thin films' and substrates' thickness-dependent relaxation of lattice-mismatch strain. Our results indicate that the dielectric characteristics of BST thin films deposited on compliant substrates are different from those of their bulk counterparts. The ferroelectricity and dielectric performances of the BST thin films can be modulated by changing the thickness ratio of the film to substrate or the stress state. This is an effectively theoretical guidance for the property optimization of ferroelectric thin films used in microwave devices.",

keywords = "Compliant substrate, Dielectric tenability, Ferroelectric thin film, Stress control",

author = "Wu, \{Hua Ping\} and Bin Xu and Lu, \{Xiao Yan\}",

year = "2011",

doi = "10.1109/SPAWDA.2011.6167285",

language = "英语",

isbn = "9781467310789",

series = "Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011",

pages = "449--452",

booktitle = "Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011",

note = "2011 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2011 ; Conference date: 09-12-2011 Through 11-12-2011",

}

Wu, HP, Xu, B & Lu, XY 2011, Dielectric tunability of Ba _xSr _1-xTiO ₃ thin films grown on a compliant substrate. in Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011., 6167285, Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011, pp. 449-452, 2011 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2011, Shenzhen, Guangdong, China, 9/12/11. https://doi.org/10.1109/SPAWDA.2011.6167285

Dielectric tunability of Ba _xSr _1-xTiO ₃ thin films grown on a compliant substrate. / Wu, Hua Ping; Xu, Bin; Lu, Xiao Yan.
Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011. 2011. p. 449-452 6167285 (Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - The phase transition temperature and dielectric tunability of Ba xSr 1-xTiO 3 (BST) thin films grown on a compliant substrate are theoretically investigated using the Ginzburg-Landau-Devonshire theory combined with the Timosheko elastic theory by considering thin films' and substrates' thickness-dependent relaxation of lattice-mismatch strain. Our results indicate that the dielectric characteristics of BST thin films deposited on compliant substrates are different from those of their bulk counterparts. The ferroelectricity and dielectric performances of the BST thin films can be modulated by changing the thickness ratio of the film to substrate or the stress state. This is an effectively theoretical guidance for the property optimization of ferroelectric thin films used in microwave devices.

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Wu HP, Xu B, Lu XY. Dielectric tunability of Ba _xSr _1-xTiO ₃ thin films grown on a compliant substrate. In Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011. 2011. p. 449-452. 6167285. (Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2011). doi: 10.1109/SPAWDA.2011.6167285