Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1611702 | Journal of Alloys and Compounds | 2014 | 5 Pages |
Abstract
Mn-doped 0.15Pb(In1/2Nb1/2)O3-0.55Pb(Mg1/3Nb2/3)O3-0.30PbTiO3 single crystals were grown by modified Bridgman technique. High dielectric peak temperature of 161 °C, low dielectric loss of 0.03% and enhanced pyroelectric coefficient of 10.1 Ã 10â4 C/m2 K are observed. Effects of oxygen vacancies related to annealing atmosphere have been investigated to explain enhanced dielectric and pyroelectric properties. Detectivity figure of merit of 34.1 Ã 10â5 Paâ1/2 is achieved for oxygen-annealed crystals, which is the highest value among reported PIMNT crystals. Two different linear relationships between the coercive field and frequency are observed to obey Merz's law, which reveals the domain and polarization switching mechanism.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Long Li, Xiaobing Li, Xiangyong Zhao, Bo Ren, Qing Xu, Haiqing Xu, Haosu Luo, Xin Li, Xiumei Shao,