Magneto-optical imaging of polycrystalline LaFePO1-xF x

Y. Tsuchiya; Y. Nakajima; T. Tamegai; Y. Kamihara; M. Hirao; H. Hosono

doi:10.1016/j.physc.2010.01.066

Magneto-optical imaging of polycrystalline LaFePO_1-xF _x

Y. Tsuchiya, Y. Nakajima, T. Tamegai, Y. Kamihara, M. Hirao, H. Hosono

研究成果: Article › 査読

2 被引用数 (Scopus)

抄録

The remanent state field profile has been observed in polycrystalline LaFePO_0.94F_0.06 by magneto-optical (MO) imaging method. MO images show the absence of magnetic field modulation associated with weak-link nature of grain boundaries, indicating that the inter-grain critical current density J_c^inter is comparable to intra-grain critical current density J_c^intra in contrast to iron-arsenide superconductors. J_c^inter is estimated as 1.9 × 10⁴ A/cm² at T = 0 K from magnetization measurement, which is similar to the values in iron-arsenide superconductors. Implication of these J_c behavior is discussed in relation to the possible pairing symmetry.

本文言語	English
ページ（範囲）	S300-S301
ジャーナル	Physica C: Superconductivity and its applications
巻	470
号	SUPPL.1
DOI	https://doi.org/10.1016/j.physc.2010.01.066
出版ステータス	Published - 2010 12月
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
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/j.physc.2010.01.066

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引用スタイル

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AU - Nakajima, Y.

AU - Tamegai, T.

AU - Kamihara, Y.

AU - Hirao, M.

AU - Hosono, H.

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