Weidong Si
Brookhaven National Laboratory
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Publication
Featured researches published by Weidong Si.
IEEE Transactions on Applied Superconductivity | 2005
Zuxin Ye; Qiang Li; Weidong Si; P. D. Johnson
Magnetic flux penetration into a 0.2 /spl mu/m-thick YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) thin film grown on a crystalline LaAlO/sub 3/ (LAO) substrate was studied using magneto-optical imaging techniques. Enhanced critical current density J/sub c/ was observed at the location corresponding to twin domains on the underlying substrate. We attribute this J/sub c/ enhancement to increased pinning defects in the YBCO layer induced by the naturally formed nano-scaled surface roughness on the LAO substrate. Our results suggest that the substrate surface roughness might be helpful in J/sub c/ improvement of YBCO thin films grown on metal substrates by pulsed laser deposition.
Chemistry of Materials | 2007
Young-Il Kim; Weidong Si; Patrick M. Woodward; Eli Sutter; and Sangmoon Park; Thomas Vogt
Archive | 2005
Yufeng Hu; Qiang Li; Weidong Si
Solid State Communications | 2005
Sangmoon Park; Yongjae Lee; Weidong Si; Thomas Vogt
Archive | 2006
Yufeng Hu; Eli Anguelova Sutter; Weidong Si; Qiang Li
Bulletin of the American Physical Society | 2006
Weidong Si; Sangmoon Park; Eli Sutter; Thomas Vogt; Young-Il Kim; Patrick M. Woodward
Bulletin of the American Physical Society | 2006
Yufeng Hu; Eli Sutter; Weidong Si; Qiang Li
Archive | 2005
Yufeng Hu; Weidong Si; Eli Sutter; Robert Sabatini
MRS Proceedings | 2005
Yufeng Hu; Eli Sutter; Weidong Si; Qiang Li
Bulletin of the American Physical Society | 2005
Qiang Li; Zuxin Ye; Weidong Si; Yufeng Hu
