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- High Curie point CaBi2Nb2O9 thin films: A potential candidate for lead-free thin-film piezoelectrics
- Universidade Estadual Paulista (UNESP)
- CaBi2Nb2O9 (CBNO) thin films deposited on platinum coated silicon substrates by the polymeric precursor method exhibited good structural, dielectric, and piezoelectric characteristics. Capacitance-voltage measurements indicated good ferroelectric polarization switching characteristics. Remanent polarization and drive voltage values were 4.2 mu C/cm(2) and 1.7 V for a maximum applied voltage of 10 V. The film has a piezoelectric coefficient d(33) equal to 60 pm/V, current density of 0.7 mu A/cm(2), and Curie temperature of 940 degrees C. The polar-axis-oriented CBNO is a promising candidate for use in lead-free high Curie point in ferroelectric and piezoelectric devices. (c) 2006 American Institute of Physics.
- Journal of Applied Physics. Melville: Amer Inst Physics, v. 100, n. 7, 4 p., 2006.
- American Institute of Physics (AIP)
- Acesso restrito
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