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首页> 外文期刊>Applied Surface Science >Periodicity and orientation dependence of electrical properties of [(Pb_(0.90)La_(0.10))Ti_(0.975)O_3/PbTiO_3]_n (n = 1-6) multilayer thin films
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Periodicity and orientation dependence of electrical properties of [(Pb_(0.90)La_(0.10))Ti_(0.975)O_3/PbTiO_3]_n (n = 1-6) multilayer thin films

机译：[[Pb_（0.90）La_（0.10））Ti_（0.975）O_3 / PbTiO_3] _n（n = 1-6）多层薄膜的电性能的周期性和方向依赖性

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摘要

The [(Pb_(0.90)La_(0.10))Ti_(0.975)O_3/PbTiO_3]_n (PLT/PT)_n (n= 1-6) multilayer thin films were deposited on the PbO_x(100)/Pt/Ti/SiO_2/Si substrates by RF magnetron sputtering method. The layer thickness of PbTiO_3 in one periodicity kept unchanged, and the layer thickness of (Pb_(0.90)La_(0.10))Ti_(0.975)O_3 is varied. The electrical properties of the (PLT/PT)_n multilayer thin films were investigated as a function of the periodicity (n) and the orientation. The studied results show that the PbO_x buffer layer results in the (PLT/ PT)_n films' (100) orientation, and the (100)-oriented (PLT/PT)_n multilayer thin films with n = 2 exhibit better pyroelectric properties and ferroelectric behavior than those of (PLT/PT)_n films with other periodicities and orientations. The underlying physical mechanism for the enhanced electrical properties of (PLT/PT)_n multilayer thin films was carefully discussed in terms of the periodicities and orientations.
机译：将[[Pb_（0.90）La_（0.10））Ti_（0.975）O_3 / PbTiO_3] _n（PLT / PT）_n（n = 1-6）多层薄膜沉积在PbO_x（100）/ Pt / Ti /射频磁控溅射法制备SiO_2 / Si衬底。 PbTiO_3的一个周期的层厚度保持不变，并且（Pb_（0.90）La_（0.10））Ti_（0.975）O_3的层厚度变化。研究了（PLT / PT）_n多层薄膜的电性能，该电性能是周期性（n）和取向的函数。研究结果表明，PbO_x缓冲层导致（PLT / PT）_n薄膜的（100）取向，而（n）= 2的（100）取向（PLT / PT）_n多层薄膜表现出更好的热电性能，并且具有（PLT / PT）_n薄膜具有其他周期性和取向的铁电行为。 （PLT / PT）_n多层薄膜的增强电学性质的基本物理机制已根据周期性和方向进行了仔细讨论。

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