English, Article edition: ENHANCED DIELECTRIC CHARACTERISTICS OF MANGANESE-DOPED BZT THIN FILMS J. ZHU; W. J. JIE; X. H. WEI; ...

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Bookmark: http://trove.nla.gov.au/version/84064
Physical Description
  • article
Language
  • English

Edition details

Title
  • ENHANCED DIELECTRIC CHARACTERISTICS OF MANGANESE-DOPED BZT THIN FILMS
Author
  • J. ZHU
  • W. J. JIE
  • X. H. WEI
  • W. F. QIN
  • Y. ZHANG
  • Y. R. LI
Physical Description
  • article
Notes
  • Ba(Zr0.2Ti0.8)O3 (BZT) and 2 mol% Mn additional doped BZT (Mn-BZT) thin films were deposited by pulsed laser deposition technique under the same growth conditions on LaAlO3 substrates with the bottom electrodes of LaNiO3. The microstructure of the films was characterized by X-ray diffraction (XRD) in the mode of θâ2θ scan and Φ-scan. The results indicated that BZT film was (001)-oriented_with an in-plane relationship of BZT[100]/​/​LNO[100]/​/​LAO[100]. The Mn-BZT film exhibited higher dielectric constant of 225 at zero electric field, larger dielectric tunability of 59.4%, and lower dielectric loss of 1.8% under an applied electric field of 720 kV/​cm. The figure of merit for BZT thin film increased from 19.8 to 33 by Mn doping. The enhanced dielectric behavior by Mn doping could be mainly attributed to the decrease of oxygen vacancies and the reorientation of the dipolar defect complex of ${\rm Mn}^{\prime\prime}_{\rm Ti} - {\rm V}_{\ddot{\rm O}}$.
  • Mn doping, BZT, PLD, 77.55.+f, 68.55.Ln
  • RePEc:wsi:srlxxx:v:15:y:2008:i:01:p:29-33
Language
  • English
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