Irreversibility fields and critical current densities in strongly pinned YBa2Cu3O7-x films with artificial pinning centers

Kaname Matsumoto; Tomoya Horide; Alok K. Jha; Paolo Mele; Yutaka Yoshida; Satoshi Awaji

doi:10.1109/TASC.2015.2396358

Irreversibility fields and critical current densities in strongly pinned YBa₂Cu₃O_7-x films with artificial pinning centers

Kaname Matsumoto, Tomoya Horide, Alok K. Jha, Paolo Mele, Yutaka Yoshida, Satoshi Awaji

研究成果: Article › 査読

15 被引用数 (Scopus)

抄録

We propose a microscopic approach to derive angular dependent critical current density J_c(θ) of YBCO films with c-axis correlated nanorods, based on the energy gain by pinning. Results are in good agreement with experimental ones. Irreversibility fields and J_c in YBa₂Cu₃O_7-x thin films containing segmented BaSnO₃ nanorods are systematically changed by selection of nanorod length and its spacing, and the variations are explained by the 'harmonic oscillator' approach based on the Bose glass state. Analysis of pinning energies and J_c indicates that stacked BSO nanorod segments in line behave as single columnar with a smaller diameter pin for Bc, in contrast, as nanoparticle pins for Bab.

本文言語	English
論文番号	7024153
ジャーナル	IEEE Transactions on Applied Superconductivity
巻	25
号	3
DOI	https://doi.org/10.1109/TASC.2015.2396358
出版ステータス	Published - 2015 6 1
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
電子工学および電気工学

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10.1109/TASC.2015.2396358

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引用スタイル

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AU - Yoshida, Yutaka

AU - Awaji, Satoshi

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