Pb(Mg1/3Nb2/3)1-xTixO3和Pb(In1/2Nb1/2)1-xTixO3晶体的电场诱导介电特性和去极化

2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics Pub Date : 2007-05-27 DOI:10.1109/ISAF.2007.4393330

C. Tu, C. Hsieh, C.-T. Tseng, F.-T. Wang, S. Lee, H. Chuang

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引用次数: 0

摘要

本文研究了(001)切割弛豫剂Pb(Mg1/3Nb2/3)0.70Ti0.30O3 (PMNT30%)和Pb(In1/2Nb1/2)0.70Ti0.30O3 (PINT30%)单晶的电场诱导介电常数和退极化现象。PMNT30%的脱极化温度Tdcong395 K比菱形PMNT30%的脱极化温度高约40 K。由于极性纳米团簇引起的弛豫型介电色散在Td以上再次出现，并且在Burns温度下仍然明显。

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Electric-Field-Induced Dielectric Properties and Depolarization in Pb(Mg1/3Nb2/3)1-xTixO3 and Pb(In1/2Nb1/2)1-xTixO3 Crystals

This work presents electric-field-induced dielectric permittivity and depolarization in (001)-cut relaxor Pb(Mg_1/3Nb_2/3)_0.70Ti_0.30O₃ (PMNT30%) and Pb(In_1/2Nb_1/2)_0.70Ti_0.30O₃ (PINT30%) single crystals. The depolarization temperature T_dcong395 K of PINT30% is about 40 K higher than in the rhombohedral PMNT30%. The relaxor-type dielectric dispersion due to polar nanoclusters reappears above T_d, and remains evident up to the Burns temperature.

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2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics

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