Irreversibility fields and critical current densities in strongly pinned YBa2Cu3O7-x films with BaSnO3 nanorods: The influence of segmented BaSnO3 nanorods

Kaname Matsumoto; Isamu Tanaka; Tomoya Horide; Paolo Mele; Yutaka Yoshida; Satoshi Awaji

doi:10.1063/1.4898763

Irreversibility fields and critical current densities in strongly pinned YBa₂Cu₃O_7-x films with BaSnO₃ nanorods: The influence of segmented BaSnO₃ nanorods

Kaname Matsumoto, Isamu Tanaka, Tomoya Horide, Paolo Mele, Yutaka Yoshida, Satoshi Awaji

研究成果: Article › 査読

13 被引用数 (Scopus)

抄録

We report irreversibility fields B_irr and critical current densities J_c in YBa₂Cu₃O_7-x thin films containing segmented BaSnO₃ nanorods. B_irr and J_c 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 segmented nanorods behave as single columnar pin for B ∥ c, in contrast, as nanoparticle pins for B ∥ ab. The present results may help to further investigate anisotropy tuning of pinning structures.

本文言語	English
論文番号	163903
ジャーナル	Journal of Applied Physics
巻	116
号	16
DOI	https://doi.org/10.1063/1.4898763
出版ステータス	Published - 2014 10 28
外部発表	はい

ASJC Scopus subject areas

Physics and Astronomy(all)

文献へのアクセス

10.1063/1.4898763

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引用スタイル

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AU - Yoshida, Yutaka

AU - Awaji, Satoshi

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AB - We report irreversibility fields Birr and critical current densities Jc in YBa2Cu3O7-x thin films containing segmented BaSnO3 nanorods. Birr and Jc 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 Jc indicates that segmented nanorods behave as single columnar pin for B ∥ c, in contrast, as nanoparticle pins for B ∥ ab. The present results may help to further investigate anisotropy tuning of pinning structures.

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