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Influence of BaSnO3 nanoparticle dispersions on the flux-pinning properties of GdBa2Cu3O7-delta thin films
- Authors
- Tran, DH[Tran, D. H.]; Putri, WBK[Putri, W. B. K.]; Chung, JS[Chung, J. S.]; Kang, B[Kang, B.]; Lee, NH[Lee, N. H.]; Kang, WN[Kang, W. N.]
- Issue Date
- Jul-2013
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- GdBCO thin films; BSO; Artificial pinning centers
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.62, no.12, pp.1819 - 1822
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 62
- Number
- 12
- Start Page
- 1819
- End Page
- 1822
- ISSN
- 0374-4884
- Abstract
- The flux-pinning properties of pulsed-laser-deposited GdBa2Cu3O7-delta (GdBCO) thin films with the addition of BaSnO3 (BSO) nanoparticles were investigated. BSO nanoparticles were created on 50-nm-thick GdBCO buffer layers; then, GdBCO superconducting layers were deposited on top of the nanoparticles to produce similar to 300-nm-thick films. The number of laser pulses was varied from 10 to 120 pulses in order to control the density and the size of the BSO nanoparticles. Magnetization data measured at 77 K showed that the critical current density (J (c) ) was enhanced in the GdBCO films with diluted BSO additions and that the maximum J (c) enhancement was achieved using 40 pulses of a BSO deposition. The J (c) enhancements were attributed to creations of pinning centers through BSO nanoparticle dispersions inside GdBCO matrix.
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