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Issue 89, 2017, Issue in Progress
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Thickness dependence of structure and superconductivity of the SmBa2Cu3O7 film by laser CVD

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Abstract

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.

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

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Publication details

The article was received on 03 Nov 2017, accepted on 28 Nov 2017 and first published on 12 Dec 2017


Article type: Paper
DOI: 10.1039/C7RA12096F
Citation: RSC Adv., 2017,7, 56166-56172
  • Open access: Creative Commons BY-NC license
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    Thickness dependence of structure and superconductivity of the SmBa2Cu3O7 film by laser CVD

    T. Wang, K. Wang, R. Tu, S. Zhang, M. Yang, Q. Li, J. Shi, H. Li, T. Goto and L. Zhang, RSC Adv., 2017, 7, 56166
    DOI: 10.1039/C7RA12096F

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