Properties of neodymium-doped Ca0.15Sr1.85Bi4Ti5O18 ferroelectric ceramics

  • Suhua Fan
  • Fengqing Zhang
  • Guitao Liu
  • Qingbo Tian
  • Luyi Zhu


Bismuth-layered compound Ca0.15Sr1.85Bi4−xNdxTi5O18 (CSBNT, x = 0–0.25) ferroelectric ceramics samples were prepared by solid-state reaction method. The effects of Nd3+ doping on their ferroelectric and dielectric properties were investigated. The remnant polarization Pr of CSBNT ceramics increases at beginning then decreases with increasing of Nd3+ doping level, and a maximum Pr value of 9.6 μC/cm2 at x = 0.05 was detected with a coercive field Ec = 80.2 kV/cm. Nd3+ dopant not only decreases the Curie temperature linearly, but also the dielectric constant (εr) and dielectric loss tangent (tan δ). The magnitudes of εr and tan δ at the frequency of 100 kHz are estimated to be 164 and 0.0083 at room temperature, respectively.


Perovskite Oxygen Vacancy Ceramic Sample Ferroelectric Property Structural Distortion 
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The work was jointly supported by National Natural Science Foundation of China (No.50872075). The authors are grateful to Y.S. Chai for helpful discussions.


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Suhua Fan
    • 1
  • Fengqing Zhang
    • 1
  • Guitao Liu
    • 1
  • Qingbo Tian
    • 1
  • Luyi Zhu
    • 2
  1. 1.College of Material Science and EngineeringShandong Jianzhu UniversityJinanPeople’s Republic of China
  2. 2.State Key Laboratory of Crystal Materials and Institute of Crystal MaterialsShandong UniversityJinanPeople’s Republic of China

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