Effects of ZrO₂ additions on the dielectric properties of CaCu₃Ti₄O₁₂ Public Deposited

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Article appears in Applied Physics Letters ( http://apl.aip.org/) and is copyrighted by American Institute of Physics ( http://www.aip.org/).

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  • The dielectric spectra of CaCu₃Ti₄O₁₂ is characterized by a large permittivity (εᵣ>10 000) with only a weak dependence on temperature over the temperature range 200–400 K. In this work, doping with 0.1–1.0 wt % ZrO₂ has been shown to dramatically reduce the dielectric loss. At 0.5 wt % ZrO₂, tan δ remains below 0.05 over the frequency range 50 Hz–30 kHz and is just 0.065 at 100 kHz. While there is some diminution of the permittivity (εᵣ≈5000 at 10 kHz) Zr-doped ceramics, exhibited very little bias dependence (∆C/C₀<1.0% up to 40 V). In summary, results suggest that ZrO₂ doping is an effective method for maintaining a high permittivity and low loss over a broad range in temperature, bias, and frequency.
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  • Patterson, E. A., Kwon, S., Huang, C., & Cann, D. P. (2005). Effects of ZrO₂ additions on the dielectric properties of CaCu₃Ti₄O₁₂ [Electronic version]. Applied Physics Letters, 87(18).
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  • description.provenance : Submitted by David Moynihan (dmscanner@gmail.com) on 2010-02-19T19:40:34Z No. of bitstreams: 1 Cann.EffectsofZrO2Additions.pdf: 72466 bytes, checksum: e3b367fb93d2517bbd9c5ecd9aa92b26 (MD5)
  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2010-02-22T15:02:49Z (GMT) No. of bitstreams: 1 Cann.EffectsofZrO2Additions.pdf: 72466 bytes, checksum: e3b367fb93d2517bbd9c5ecd9aa92b26 (MD5)
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