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Microwave dielectric properties of epitaxial mn-doped Ba(Zr,Ti)O 3 thin films on LaAlO 3 substrates

  • Ming Liu
  • , Chunrui Ma
  • , Jian Liu
  • , Gregory Collins
  • , Chonglin Chen
  • , Andy D. Alemayehu
  • , Guru Subramanyam
  • , Chao Dai
  • , Yuan Lin
  • , Amar Bhalla
  • University of Texas at San Antonio
  • University of Dayton
  • University of Electronic Science and Technology of China

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Environmental friendly ferroelectric relaxor Ba(Zr0.2Ti 0.8)O3 thin films with an additional 2% Mn dopant were epitaxially fabricated on the (001) LaAlO3 single crystal substrates by pulsed laser deposition. Microstructure characterizations from X-ray diffraction suggest that the films are c-axis oriented with the interface relationship of [101]Mn:BZT//[100]LAO and (001)Mn: BZT//(001)LAO. The microwave dielectric property measurements (13-17.5 GHz) reveal that the films have excellent dielectric properties with large tunability, high dielectric constant, and low dielectric loss, which the average value is 25.9%, 169 and 0.054, respectively. It is indicated that the additional 2% Mn doped Ba(Zr0.2Ti 0.8)O3 thin films can be used for the development of the room temperature tunable microwave elements and related device applications.

Original languageEnglish
Pages (from-to)65-69
Number of pages5
JournalFerroelectrics, Letters Section
Volume40
Issue number1-3
DOIs
StatePublished - 1 Jan 2013

Keywords

  • Ba(Zr,Ti)O
  • Ferroelectric
  • dielectric
  • epitaxial
  • microwave
  • thin films

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