High tunable dielectric response of Pb0.87Ba0.1La0.02(Zr0.6Sn0.33Ti0.07)O3 thin film
High tunable dielectric response of Pb0.87Ba0.1La0.02(Zr0.6Sn0.33Ti0.07)O3 thin film
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DOI：
10.1063/1.3466754
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发表时间：
2010-08-15
影响因子：
3.2
通讯作者：
Zhang, Q.
中科院分区：
文献类型：
--
作者：
Correia, T. M.;Zhang, Q.
观察到溶胶-凝胶法制备的Pb（0.87）Ba（0.1）La（0.02）（Zr（0.6）Sn（0.33）Ti（0.07））O（3）（PBLZST）薄膜的介电常数最大值出现在T（m）=70 ℃，而不是在具有相同组成的块体陶瓷中观察到的40 ℃。介电常数与电场（E）的测量在60 kV cm（-1）（极化）和25 kV cm（-1）（去极化）处出现两个最大值，分别对应于反铁电-铁电和铁电-反铁电相变。可调谐性和品质因数的计算显示在E=350 kV cm（-1）和类似于141，分别为75%的最大值。这些高的可调介电响应意味着PBLZST薄膜可以是一种有吸引力的材料，用于可调器件的应用。(C)2010年美国物理学会。[doi：10.1063/1.3466754]
The permittivity maximum of a sol-gel derived Pb(0.87)Ba(0.1)La(0.02)(Zr(0.6)Sn(0.33)Ti(0.07))O(3) (PBLZST) thin film was observed to appear at T(m)=70 degrees C rather than at 40 degrees C as observed in the bulk ceramics with the same composition. Measurements of permittivity versus electric field (E) present two maximums at 60 kV cm(-1) (polarizing) and 25 kV cm(-1) (depolarizing), corresponding to antiferroelectric-ferroelectric and ferroelectric-antiferroelectric phase transitions, respectively. Calculations of tunability and figure-of-merit display a maximum value of 75% at E=350 kV cm(-1) and similar to 141, respectively. These high tunable dielectric responses imply that PBLZST thin films can be an attractive material for tunable device applications. (C) 2010 American Institute of Physics. [doi:10.1063/1.3466754]