Sr2FeMoO6薄膜激光感生热电势效应的研究

J4 ›› 2010, Vol. 27 ›› Issue (3): 351-355.

Sr2FeMoO6薄膜激光感生热电势效应的研究

陶汝华^1,2 张玉亮^1,2 董伟伟^1,2 邓赞红^1,2 王波³ 方晓东^1,2

1中国科学院安徽光学精密机械研究所合肥 230031； 2中国科学院新型薄膜太阳电池重点实验室合肥 230031； 3 中国科学院固体物理研究所合肥 230031

收稿日期:2009-11-03 修回日期:2009-09-11 出版日期:2010-05-28 发布日期:2010-05-11
通讯作者: 方晓东（1963-），研究员，从事功能性氧化物薄膜及准分子激光技术研究。 E-mail:xdfang@aiofm.ac.cn
作者简介:陶汝华（1970-），博士，现从事脉冲激光制备功能性氧化物薄膜研究。 Email: rhtao@aiofm.ac.cn
基金资助:
安徽省自然科学基金（090414169）和中科院安徽光机所激光中心基金

Laser-induced thermoelectric voltage effect of Sr2FeMoO6 film

TAO Ru-Hua^1,2 , ZHANG Yu-Liang^1,2 , DONG Wei-Wei^1,2 , DENG Zan-Hong^1,2 , WANG Bo³, FANG Xiao-Dong^1,2

1 AnHui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China； 2 Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences, Hefei 230031, China； 3 Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China)

Received:2009-11-03 Revised:2009-09-11 Published:2010-05-28 Online:2010-05-11

摘要/Abstract

摘要：

采用脉冲激光沉积法在倾斜SrTO3 (100)衬底上制备出高质量的Sr2FeMoO6薄膜，观察到薄膜在可见、红外波段的脉冲激光照射下具有很大的激光感生热电势效应(LITV)。研究表明，用1064nm和532nm波长的脉冲激光从薄膜表面垂直照射时，薄膜表面产生的最大峰值电压分别为0.9V和0.8V，并且LITV信号与激光能量成良好的线性关系，可用以制造高灵敏度的激光功率计/能量计。当激光从SrTO3衬底方向照射时，LITV极性发生变化。上述现象用各项异性Seebeck效应给与了解释。

关键词: 薄膜∣激光感生热电势∣脉冲激光沉积∣Sr2FeMoO6∣Seebeck效应

Abstract:

Sr2FeMoO6 film was grown on vicinal-cut SrTiO3 (100) substrate by pulsed laser deposition method. The laser-induced thermoelectric voltage (LITV) was observed when the film was irradiated by visible and infrared pulsed laser. It was found that the maximal peak voltages were 0.9V and 0.8V when the film was irradiated by the laser of 1064nm and 532nm wavelength，respectively. The intensity of the LITV signals changed linearly with the pulse energy, which can be used as laser energy/power meters with high sensitivity. It was also found the signal polarity was reversed when the sample was irradiated through the substrate rather than at the air/film interface. Anisotropy Seebeck effect is proposed to cause the lateral voltages.

Key words: thin films∣LITV∣pulsed laser deposition∣Sr2FeMoO6∣Seebeck effect

陶汝华张玉亮董伟伟邓赞红王波方晓东. Sr2FeMoO6薄膜激光感生热电势效应的研究[J]. J4, 2010, 27(3): 351-355.

TAO Ru-Hua, ZHANG Yu-Liang, DONG Wei-Wei, DENG Zan-Hong, WANG Bo, FANG Xiao-Dong. Laser-induced thermoelectric voltage effect of Sr2FeMoO6 film[J]. J4, 2010, 27(3): 351-355.

参考文献

[1] Chang C L, Kleinhammes A, Moulton W G, Testardi L R. Symmetry-forbidden laser-induced voltages in YBa2Cu3O7 [J]. Physacal Review B 1990, 41: 11564-11567.
[2] Habermeier H U, Li X H, Zhang P X, Leibold B. Anisotropy of thermoelectric properties in La2/3Ca1/3MnO3 thin films studied by laser-induced transient voltages [J]. Solid State Communications 1999, 110: 473-478.
[3] Li X H, Habermeier H U，Zhang P X. Laser-induced off-diagonal thermoelectric voltage in La1-xCaxMnO3 thin films [J]. Journal of Magnetism and Magnetic Materials 2000, 211: 232-237.
[4] Zhao S Q, Zhou Y L, Zhao K, Wang S F, Chen Z H, Jin K J, Lu H B, Cheng B, Yang G Z.Laser-induced thermoelectric voltage in normal state MgB2 thin films [J]. Applied Surface Science 2006, 253: 2671-2673.
[5] Zhang P X, Habermeier H U. Atomic Layer Thermopile Materials: Physics and Application [J]. Journal of Nanomaterials 2008, 329601 (12pp).
[6] Liu X, Zhang H, Hu J T, Ding Y M , Qiao C B, Yang Y A, Cui W D, Yin J C, Liu L L, Zhang P X . Data Acquisition of Laser Induced Voltage for Rare Earth Oxide Thin Films [J]. Chinese Journal of Lasers 2008, 35(10): 1585～1590 (in chinese)
[7] Kobayashi K I, Kimura T, Sawada H, Terakura K, Tokura Y. Room-temperature magnetoresistance in an oxide material with an ordered double-perovskite structure [J]. Nature 1998, 395: 667-680.
[8] He G X, Jing L H, Li G, Zhu M. A Detailed Study on the Preparation and Electric Properties of the Double Perovskites Sr2FeMnO6 (SFMO) Film [J]. Chemical Industry Times 2006, 55 (11): 6113-6117 (In Chinese).
[9] Manako T, Izumi M, Konishi Y, Kobayashi K I, Kawasaki M, Tokura Y. Epitaxial thin film of ordered double perovskite Sr2FeMoO6 [J]. Applied Physics Letters 1999, 74: 2215-2217.
[10] Martinez B, Balcells L, Respaud M, et al. Surface and Interfacial Effects in Ceramic Manganites [J]. Journal of Magnetism and Magnetic Materials 1999, 196-197: 479-480.
[11] Tezuka K, Henmi K, Hinatsu Y. Magnetic susceptibilities and mossbauer spectra of perovskites A2FeNbO6 (A = Sr, Ba) [J]. Journal of Solid State Chemistry 2000, 154: 591-597.
[12] Jin Y J, Yu Q X, Liu S J, Liao Y. Effect of the Structures on the Enhancement of Ultra-violet Photo- luminescence Intensity in Ag Doped ZnO Film [J]. Chinese Journal of Quantum Electronics 2008, 25: 43-48.
[13] Dong W W, Tao R H, Fang X D. Recent advances on ZnO-based films synthesized by pulsed laser deposition [J]. Chinese Journal of Quantum Electronics 2006, 23: 1-9.
[14] Zhao K, Jin K J, Huang Y H, Lu H B, He M, Chen Z H, Zhou Y L, Yang G Z. Laser-induced ultrafast photovoltaic effect in La0.67Ca0.33MnO3 films at room temperature [J]. Physica B 2006, 373:72-75.
[15] Lengfellner H, Kremb G, Schnellbb?gl A, Betz J, Renk K F, Prettl W. Giant voltage upon surface heating in normal YBa2Cu3O7-δ films suggesting an atomic layer thermopile [J]. Applied Physics Letters 1992, 60: 501-503.
[16] Zhang P X, Li W K, Zhang G Y, Time dependence of laser-induced thermoelectric voltages in La1–xCaxMnO3 and YBa2Cu3O7–δ thin films [J]. Applied Physics Letters 2002, 81: 4026-4028.
[17] Yutoh Y, Yamamoto M, Kuboya H, Sugihara S, Yamauchi H. First-principles simulation of electric and magnetic properties of Sr2FeMoO6 and analysis of its thermoelectric properties [J]. Electronics and Communications in Japan Part II-Electronics 2005, 88: 11-18.