Effect of preparation on the growth mode and structure in laser MBE grown multilayer of SrTiO3 and YBa2Cu3Oy

Zhenping Wu; Jin Long Li; Jianhua Hao

doi:10.1117/12.731080

17 September 2007 Effect of preparation on the growth mode and structure in laser MBE grown multilayer of SrTiO₃ and YBa₂Cu₃O_y

Zhenping Wu, Jin Long Li, Jianhua Hao

Author Affiliations +

Proceedings Volume 6643, Physical Chemistry of Interfaces and Nanomaterials VI; 66430L (2007) https://doi.org/10.1117/12.731080
Event: NanoScience + Engineering, 2007, San Diego, California, United States

Abstract

Multilayer of SrTiO₃(STO)-YBa₂Cu₃O_7-δ(YBCO) was fabricated by laser molecular beam epitaxy (LMBE). The properties of multilayer in terms of growth modes, strain and interface structures were characterized by the in situ reflective high energy electron diffraction (RHEED) pattern, and ex situ measurements, such as atomic force microscope (AFM). By controlling growth and processing conditions, we observed a change of different growth modes of thin films. Furthermore, we also demonstrate a strong dependence of growth modes in YBCO films on the growth fashion of STO films, which could be explained in terms of the stress effect at the interface. The dependence of interface stress on thickness and growth condition was determined with AFM. These results provide an understanding and manipulating growth mechanism of the films.

Citation Download Citation

Zhenping Wu, Jin Long Li, and Jianhua Hao "Effect of preparation on the growth mode and structure in laser MBE grown multilayer of SrTiO₃ and YBa₂Cu₃O_y", Proc. SPIE 6643, Physical Chemistry of Interfaces and Nanomaterials VI, 66430L (17 September 2007); https://doi.org/10.1117/12.731080

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