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Dielectric Properties Analysis in Paraelectric ZrTiO4 Thin Films

Published online by Cambridge University Press:  21 March 2011

Kyunghae Kim
Affiliation:
School of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, 440-746, Korea
Jinhee Heo
Affiliation:
School of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, 440-746, Korea
Taeseok Kim
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul, 151-742, Korea
Byungwoo Park
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul, 151-742, Korea
Junsin Yi
Affiliation:
School of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, 440-746, Korea
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Abstract

The dielectric constants and dielectric losses of ZrTiO4 thin films deposited by DC magnetron reactive sputtering were investigated. The paraelectric properties were measured in the 100kHz range and compared with an equivalent circuit model. As the deposition temperature increased (up to 600°C), the dielectric losses (tanσ) decreased (down to 0.017±0.007), while the dielectric constants (ε) were in the range of 35±7. Post annealing at 800°C in oxygen for 2h reduced tanσ down to 0.005±0.001, higher than those of well-sintered bulk ZrTiO4.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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