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arXiv 1708.08352cond-mat.mtrl-sci
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衬底对脉冲laser沉积LaNiO3薄膜结构和输运性质的影响

Influence of substrate on structural and transport properties of LaNiO3 thin films prepared by pulsed laser deposition

L. Cichetto, S. Sergeenkov, J. C. C. A. Diaz, E. Longo, F. M. Araujo-Moreira

摘要:

报道了用脉冲激光沉积技术制备的LaNiO_3薄膜的结构和输运性质。为了了解薄膜厚度、晶格失配和晶粒尺寸对输运性质的影响,使用各种取向衬底进行沉积,包括单晶SrLaAlO4(001)、SrTiO3(100)和LaAlO3(100)。为了获得高质量的LaNiO 3薄膜,对激光能量密度、衬底温度、氧气压力和沉积时间等工艺参数进行了优化。最好的质量膜被认为是具有良好的结晶性能的织构化样品。

英文摘要:

We report the structural and transport properties of LaNiO3 thin films prepared by pulsed laser deposition technique. To understand the effects of film thickness, lattice mismatch and grain size on transport properties, various oriented substrates were used for deposition, including single-crystalline SrLaAlO4 (001), SrTiO3 (100) and LaAlO3 (100). To achieve a high quality LaNiO3 thin films, the vital parameters (such as laser fluence, substrate temperature, oxygen pressure, and deposition time) were optimized. The best quality films are found to be well textured samples with good crystalline properties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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