| The transverse laser induced thermoelectric voltages in step flow growth （1-x）Pb(Mg1/3Nb2/3)O3-xPbTiO3 thin films |
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| 引用本文： | 尚杰,张辉,李勇,曹明刚,张鹏翔.The transverse laser induced thermoelectric voltages in step flow growth （1-x）Pb(Mg1/3Nb2/3)O3-xPbTiO3 thin films[J].中国物理 B,2010,19(10):107203-107203. |
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| 作者姓名： | 尚杰 张辉 李勇 曹明刚 张鹏翔 |
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| 作者单位： | Institute of Advanced Materials for Photoelectronics, Kunming University of Science and Technology MPI, FKF, Stuttgart D-70569, Germany |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 10274026). |
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| 摘 要： | This paper reports that the transverse laser induced thermoelectric voltages (LITV) are observed for the first time in the step flow growth (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT,x = 0.20, 0.33, 0.50) thin films deposited on vicinal-cut strontium titanate single crystal substrates. Because lead magnesium niobate-lead titanate is a solid solution of lead magnesium niobate (PMN) and lead titanate (PT), there are two types of signals. One is wide with a time response of a microsecond, and the other superimposed with the wide signal is narrow with a time response of a nanosecond. The transverse LITV signals depend on the ratio of PMN to PT drastically. Under the irradiation of 28-ns pulsed KrF excimer laser with the 248-nm wavelength,the largest induced voltage is observed in the 0.50Pb(Mg1/Nb2/3)O3-0.50PbTiO3 films. Moreover, the effects of film thickness, substrates, and tilt angles of substrates are also investigated.
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| 关 键 词： | laser induced thermoelectric voltage (1-x)Pb(Mg1/3Nb2/3)O3–xPbTiO 3 films anisotropic Seebeck effect |
| 收稿时间： | 2009-11-30 |
The transverse laser induced thermoelectric voltages in step flow growth (1-x)Pb(Mg1/3Nb2/3)O3--xPbTiO3 thin films |
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| Shang Jie,Zhang Hui,Li Yong,Cao Ming-Gang and Zhang Peng-Xiang.The transverse laser induced thermoelectric voltages in step flow growth (1-x)Pb(Mg1/3Nb2/3)O3--xPbTiO3 thin films[J].Chinese Physics B,2010,19(10):107203-107203. |
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| Authors: | Shang Jie Zhang Hui Li Yong Cao Ming-Gang and Zhang Peng-Xiang |
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| Institution: | Institute of Advanced Materials for Photoelectronics, Kunming University of Science and Technology, Kunming 650051, China;Institute of Advanced Materials for Photoelectronics, Kunming University of Science and Technology, Kunming 650051, China;Institute of Advanced Materials for Photoelectronics, Kunming University of Science and Technology, Kunming 650051, China;Institute of Advanced Materials for Photoelectronics, Kunming University of Science and Technology, Kunming 650051, China;Institute of Advanced Materials for Photoelectronics, Kunming University of Science and Technology, Kunming 650051, China |
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| Abstract: | This paper reports that the transverse laser induced thermoelectric voltages (LITV) are observed for the first time in the step flow growth (1-x)Pb(Mg1/3Nb2/3)O3--xPbTiO3 (PMN--PT, x=0.20, 0.33, 0.50) thin films deposited on vicinal-cut strontium titanate single crystal substrates. Because lead magnesium niobate-lead titanate is a solid solution of lead magnesium niobate (PMN) and lead titanate (PT), there are two types of signals. One is wide with a time response of a microsecond, and the other superimposed with the wide signal is narrow with a time response of a nanosecond. The transverse LITV signals depend on the ratio of PMN to PT drastically. Under the irradiation of 28-ns pulsed KrF excimer laser with the 248-nm wavelength，the largest induced voltage is observed in the 0.50Pb(Mg1/3Nb2/3)O3--0.50 PbTiO3 films. Moreover, the effects of film thickness, substrates, and tilt angles of substrates are also investigated. |
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| Keywords: | laser induced thermoelectric voltage (1-x)Pb(Mg1/3Nb2/3)O3--xPbTiO3 films anisotropic Seebeck effect |
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