Growth and characterization of Pb0.97La0.02(Zr0.66Sn0.27Ti0.07)O3 antiferroelectric single crystals
Growth and characterization of Pb0.97La0.02(Zr0.66Sn0.27Ti0.07)O3 antiferroelectric single crystals
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DOI：
10.1007/s10853-012-6690-x
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发表时间：
2012-07
影响因子：
4.5
通讯作者：
Zihui Yang;Qiang Li;Yuanyuan Li;Shaofeng Zhang;L. Wang
中科院分区：
文献类型：
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作者：
Zihui Yang;Qiang Li;Yuanyuan Li;Shaofeng Zhang;L. Wang
采用助熔法生长出了成分接近致形相边界的Pb0.97La0.02(Zr0.66Sn0.27Ti0.07)O3（PLZST）单晶。采用pbo - pb_2 - b2o3体系作为溶剂。得到尺寸为4-6 mm的PLZST单晶，这些晶体经过抛光后呈微半透明。（200）反射峰的分裂表明所得晶体为单相，具有四方钙钛矿结构。用电感耦合等离子体原子发射光谱法测定生长晶体的元素含量。晶体的化学成分为Pb0.979La0.014(Zr0.666Sn0.285Ti0.049)O3。研究了PLZST单晶的热性能和介电性能。结果表明，磁通生长PLZST单晶在相变温度附近表现出明显的吸热过程和弛豫行为。
Single crystals of Pb0.97La0.02(Zr0.66Sn0.27Ti0.07)O3(PLZST) with the composition near the morphotropic phase boundary were grown by the flux method. The PbO–PbF2–B2O3system was used as a solvent. PLZST single crystals with the size of 4–6 mm are obtained and these crystals are slightly translucent after polishing. The splitting of (200) reflection peak indicates that the obtained crystals are of a single phase with tetragonal perovskite structure. The element contents of the grown crystals were measured by inductively coupled plasma atomic emission spectrometry. The chemical composition of the crystals is Pb0.979La0.014(Zr0.666Sn0.285Ti0.049)O3. Thermal properties and dielectric properties of PLZST single crystals were studied. The results show that flux-grown PLZST single crystals exhibit obvious endothermic processes and relaxor behaviors near the phase transition temperatures.