Shear-mode piezoelectric properties of Pb(Yb1/2Nb1/2)O3-PbTiO3 single crystals
Shear-mode piezoelectric properties of Pb(Yb1/2Nb1/2)O3-PbTiO3 single crystals
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DOI：
10.1063/1.1497435
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发表时间：
2002-07
影响因子：
4
通讯作者：
Shujun Zhang;Lebrun Laurent;S. Rhee;C. Randall;T. Shrout
中科院分区：
文献类型：
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作者：
Shujun Zhang;Lebrun Laurent;S. Rhee;C. Randall;T. Shrout
本文报道了0.55Pb（Yb_（1/2）Nb_（1/2））O_3 - 0.45PbTiO_3（PYNT_（45））单晶的剪切模式压电和机电性能。压电系数d15和g15分别为2100 pC/N和0.064 Vm/N，在室温下机电耦合系数k15为91%。随着温度的升高，该值在168 °C以上急剧下降，对应于铁电-铁电相变温度。与0.955Pb（Zn 1/3 Nb 2/3）O3-0.045PbTiO3单晶相比，PYNT 45晶体具有更大的g_（15）值，且使用温度范围明显扩大。高温老化实验表明，PYNT 45单晶具有良好的畴稳定性。
In this letter, the shear-mode piezoelectric and electromechanical properties of 0.55Pb(Yb1/2Nb1/2)O3–0.45PbTiO3 (PYNT45) single crystals are reported. The piezoelectric coefficients d15 and g15 were found to be 2100 pC/N and 0.064 Vm/N, respectively, with an electromechanical coupling coefficient k15 of 91% at room temperature. With increasing temperature, the values decreased dramatically above 168 °C, corresponding to the ferroelectric–ferroelectric phase transition temperature. In contrast to 0.955Pb(Zn1/3Nb2/3)O3–0.045PbTiO3 single crystals, PYNT45 crystals exhibit a larger g15 and the useful temperature range is significantly expanded. High-temperature aging experiments showed that PYNT45 single crystals exhibit good domain stability.