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dc.contributor.authorChen, Cheng-Sao
dc.contributor.authorTu, Chi-Shun
dc.contributor.authorChen, Pin-Yi
dc.contributor.authorTing, Yi
dc.contributor.authorChiu, S.-J.
dc.contributor.authorHung, C.-M.
dc.contributor.authorLee, H.-Y.
dc.contributor.authorWang, S.-F.
dc.contributor.authorAnthoninappen, J.
dc.contributor.authorSchmidt, V. Hugo
dc.contributor.authorChien, R. R.
dc.identifier.citationC.-S. Chen, C.S. Tu, P.-Y. Chen, Y. Ting, S.-J. Chiu, C.M. Hung, H.-Y. Lee, S.-F. Wang, J. Anthoninappen, V.H. Schmidt, and R.R. Chien, “Dielectric properties in lead-free piezoelectric (Bi0.5Na0.5)TiO3-BaTiO3 single crystals and ceramics,” Journal Crystal Growth 393, 129-133 (2014). doi: 10.1016/j.jcrysgro.2013.09.011.en_US
dc.description.abstractThe 0.93(Bi0.5Na0.5)TiO3–0.07BaTiO3 (BNB7T) piezoelectric single crystals and ceramics have been grown respectively by using the self-flux and solid-state-reaction methods. The real (ε′) and imaginary (ε″) parts of the dielectric permittivity of BNB7T crystals and ceramics were investigated with and without an electric (E) poling as functions of temperature and frequency. The BNB7T crystal shows a stronger dielectric maximum at Tm~240 °C than the ceramic at Tm~300 °C. The dielectric permittivity of BNB7T ceramic shows an extra peak after poling at an electric field E=40 kV/cm in the region of 80–100 °C designated as the depolarization temperature (Td). A wide-range dielectric thermal hysteresis was observed in BNB7T crystal and ceramic, suggesting a first-order-like phase transition. The dielectric permittivity ε′ obeys the Curie–Weiss equation, ε′=C/(T−To), above 500 °C, which is considered as the Burns temperature (TB), below which polar nanoregions begin to develop and attenuate dielectric responses.en_US
dc.description.sponsorshipNational Science of Council of Taiwan grant numbers 102-2221-E-146–001, 102-2221-E131-006, and 100–2112-M-030-002-MY3en_US
dc.rightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).en_US
dc.titleDielectric properties in lead-free piezoelectric (Bi0.5Na0.5)TiO3-BaTiO3 single crystals and ceramicsen_US
mus.citation.journaltitleJournal of Crystal Growthen_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.universityMontana State University - Bozemanen_US

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