Issue 89, 2017, Issue in Progress

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

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

Article information

Article type
Paper
Submitted
03 Nov 2017
Accepted
28 Nov 2017
First published
12 Dec 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 56166-56172

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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