Single domain vs. polydomain [111] 0.72Pb(Mg1/3Nb2/3)O3-0.28PbTiO3 single crystal. Polarization switching, dielectric and pyroelectric properties
Single domain vs. polydomain [111] 0.72Pb(Mg1/3Nb2/3)O3-0.28PbTiO3 single crystal. Polarization switching, dielectric and pyroelectric properties
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DOI：
10.1063/1.4729749
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发表时间：
2012-06
影响因子：
4
通讯作者：
M. Dietze;H. Katzke;M. Es‐Souni;N. Neumann;Haosu Luo
中科院分区：
文献类型：
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作者：
M. Dietze;H. Katzke;M. Es‐Souni;N. Neumann;Haosu Luo
本文介绍了一种在[111]单晶0.72Pb（Mg_（1/3）Nb_（2/3））O_3 - 0.28PbTiO_3（PMN-PT）中引入单畴结构的极化处理方法。所获得的性质不同于那些已知的域工程[111] PMN-PT单晶。这种单畴结构的介电，铁电和热释电性能进行评估相比，多畴单晶，通过传统的极化处理极化。单畴状态的属性是反映在矫顽场处的极化的不连续性中的单个切换事件、实质上较低的介电损耗（比多畴状态）以及用于热电应用的较高的探测率
We introduce a poling treatment to induce a single domain structure in [111] single crystals of 0.72Pb(Mg1/3Nb2/3)O3-0.28PbTiO3 (PMN-PT). The properties obtained differ from those known for domain-engineered [111] PMN-PT single crystals. The dielectric, ferroelectric, and pyroelectric properties of this single domain structure are assessed in comparison to polydomain single crystals that were poled by conventional poling treatment. The attributes of the single domain state are a single switching event that reflects in a discontinuity of polarization at the coercive field, a substantially lower dielectric loss (than the multidomain state), and a higher detectivity for pyroelectric applications