Structure and dielectric properties of cubic Bi2(Zn 1/3Ta2/3)2 O7 thin films

Jun Hong Noh, Hee Beom Hong, Jung Kun Lee, Chin Moo Cho, Jin Young Kim, Sangwook Lee, In Sun Cho, Hyun Suk Jung, Kug Sun Hong

Research output: Contribution to journalArticle

Abstract

Pyrochlore Bi2(Zn1/3Ta2/3)2 O7 (BZT) films were prepared by pulsed laser deposition on Pt/TiO2/SiO2/Si substrates. In contrast to bulk monoclinic BZT ceramics, the BZT films have a cubic structure mediated by an interfacial layer. The dielectric properties of the cubic BZT films [ε∼177, temperature coefficient of capacitance (TCC) ∼-170 ppm/°C] are much different from those of monoclinic BZT ceramics (ε∼61, TCC ∼+60 ppm/°C). Increasing the thickness of the BZT films returns the crystal structure to the monoclinic phase, which allows the dielectric properties of the BZT films to be tuned without changing their chemical composition.

Original languageEnglish
Article number084103
JournalJournal of Applied Physics
Volume106
Issue number8
DOIs
Publication statusPublished - 2009 Nov 10
Externally publishedYes

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dielectric properties
thin films
capacitance
ceramics
coefficients
pulsed laser deposition
chemical composition
crystal structure
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Noh, J. H., Hong, H. B., Lee, J. K., Cho, C. M., Kim, J. Y., Lee, S., ... Hong, K. S. (2009). Structure and dielectric properties of cubic Bi2(Zn 1/3Ta2/3)2 O7 thin films. Journal of Applied Physics, 106(8), [084103]. https://doi.org/10.1063/1.3246807

Structure and dielectric properties of cubic Bi2(Zn 1/3Ta2/3)2 O7 thin films. / Noh, Jun Hong; Hong, Hee Beom; Lee, Jung Kun; Cho, Chin Moo; Kim, Jin Young; Lee, Sangwook; Cho, In Sun; Jung, Hyun Suk; Hong, Kug Sun.

In: Journal of Applied Physics, Vol. 106, No. 8, 084103, 10.11.2009.

Research output: Contribution to journalArticle

Noh, JH, Hong, HB, Lee, JK, Cho, CM, Kim, JY, Lee, S, Cho, IS, Jung, HS & Hong, KS 2009, 'Structure and dielectric properties of cubic Bi2(Zn 1/3Ta2/3)2 O7 thin films', Journal of Applied Physics, vol. 106, no. 8, 084103. https://doi.org/10.1063/1.3246807
Noh, Jun Hong ; Hong, Hee Beom ; Lee, Jung Kun ; Cho, Chin Moo ; Kim, Jin Young ; Lee, Sangwook ; Cho, In Sun ; Jung, Hyun Suk ; Hong, Kug Sun. / Structure and dielectric properties of cubic Bi2(Zn 1/3Ta2/3)2 O7 thin films. In: Journal of Applied Physics. 2009 ; Vol. 106, No. 8.
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AU - Lee, Sangwook

AU - Cho, In Sun

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