Skip to main content
profile image
Selected Works of Guru Subramanyam
Article
Enhanced dielectric properties of (Ba,Sr)TiO3//Ba(Zr,Ti)O-3 heterostructures with optimized structure design
Crystal Engineering Communications
  • Ming Liu, University of Texas at San Antonio
  • Jian Liu, University of Texas at San Antonio
  • Chunrui Ma, University of Texas at San Antonio
  • Gregory Collins, University of Texas at San Antonio
  • Chonglin Chen, University of Texas at San Antonio
  • Andy D. Alemayehu, University of Dayton
  • Guru Subramanyam, University of Dayton
  • Jie He, University of Texas at Arlington
  • Jiechao Jiang, University of Texas at Arlington
  • Efstathios I. Meletis, University of Texas at Arlington
  • Amar Bhalla, University of Texas at San Antonio
Link
Document Type
Article
Publication Date
5-1-2013
Abstract

Environment-friendly ferroelectric Mn:BST//Mn:BZT heterostructures were epitaxially deposited on (001) MgO substrates by pulsed laser deposition with different combination ratios of Mn:BST over Mn:BZT, 2.5:7.5; 1:1; and 7.5:2.5. The microstructural studies indicate that the in-plane interface relationships between the heterostructures and the substrate are determined to be (001)Mn:BST//(001)Mn:BZT//(001)MgO and [100]Mn:BST//[100]Mn:BZT//[100]MgO. The Ku band microwave (15.5–18 GHz) dielectric property characterizations show that the dielectric constant, dielectric loss, and tunabilities of the heterostructures are highly dependent upon the sequences of Mn:BST to Mn:BZT. The optimized dielectric tunability with a low loss tangent was found to be 58.1%–74.4% under the combination ratio of 1:1 for Mn:BST to Mn:BZT, which suggests that the as-grown ferroelectric heterostructures can be developed for room temperature tunable microwave elements and related device applications.

Inclusive pages
6641-6644
ISBN/ISSN
1466-8033
Comments

Reproduced by permission of the Royal Society of Chemistry (RSC). Permission documentation is on file.

Publisher
Royal Society of Chemistry
Peer Reviewed
Yes
Disciplines
Citation Information
Ming Liu, Jian Liu, Chunrui Ma, Gregory Collins, et al.. "Enhanced dielectric properties of (Ba,Sr)TiO3//Ba(Zr,Ti)O-3 heterostructures with optimized structure design" Crystal Engineering Communications Vol. 15 Iss. 34 (2013)
Available at: http://works.bepress.com/guru_subramanyam/24/