Thickness dependence of structure and superconductivity of the SmBa2Cu3O7 film by laser CVD

Ting Wang, Kaidong Wang, Rong Tu, Song Zhang, Meijun Yang, Qizhong Li, Ji Shi, Haiwen Li, Takashi Goto, Lianmeng Zhang

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2 Citations (Scopus)


SmBa2Cu3O7 (SmBCO) superconductive films with thicknesses in the range from 0.47 to 2.72 μm were prepared on single-crystalline LAO (100) substrates by laser chemical vapor deposition (laser CVD). The effect of thickness on the orientation, microstructure, and superconductivity of SmBCO films was investigated. The preferred orientation of the SmBCO film changed from c-axis to a- and c-axis co-orientation with an increase in thickness from 0.47 to 2.72 μm. The SmBCO film with 1.06 μm thickness exhibited excellent c-axis epitaxial orientation with a minimum full width at half maximum of 1.07° for φ-scan and an in-plane epitaxial orientation relationship of SmBCO[100]//LAO[010] and SmBCO[010]//LAO[001]. The highest critical transition temperature and critical current density were 89.5 K and 1.92 MA cm-2 (corresponding to the critical current of 204 A cm-1-W) with a deposition rate of 7.6 μm h-1.

Original languageEnglish
Pages (from-to)56166-56172
Number of pages7
JournalRSC Advances
Issue number89
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


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