Atomic scale epitaxial growth of BaTiO3 thin films by laser molecular beam epitaxy |
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| Authors: | Huisheng Wang Kun Ma Yanwei Liu Zhiqiang Peng Dafu Cui Huibin Lu Yueliang Zhou Zhenghao Chen Lin Li Guozhen Yang |
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| Institution: | (1) Laboratory-of Optical Physics, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, 100080 Beijing, China;(2) National Laboratory for Superconductivity and Center for Condensed Matter Physics, Chinese Academy of Sciences, 100080 Beijing, China |
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| Abstract: | By using laser molecular beam epitaxy (L-MBE), atomic scale epitaxid growth of BaTiO3(BTO) thin films on SrTiO3 (STO) substrates is achieved. Measurements of reflection high energy electron diffraction (RHEED), X-ray diffraction (XRD),
scanning electron microscopy, and transmission electron microscopy reveal that the BTO films arec-axis oriented single crystals with smooth surface. The multi-layer ferroelectric/superconducting heterostructures are also
prepared and the ferroelectric properties of BTO films are studied. The results show that by using L-MBE technique, high quality
BTO films and improved device performance can be obtained.
Project supported by the National Natural Science Foundation of China, the National Department of Finance, and the National
Center for R and D on Superconductivity of China. |
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| Keywords: | laser molecular beam epitaxy BaTiO3 thin films structural analysis ferraelectric properties |
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