Influence of irradiation-induced latent tracks on local flux pinning in bi-2212 crystals

M. Leghissa, Th Schuster, W. Gerhäuser, S. Klaumünzer, M. R. Koblischka, H. Kronmüller, H. Kuhn, H. W. Neumüller, G. Saemann-Ischenko

研究成果: Letter査読

23 被引用数 (Scopus)

抄録

For the first time the influence of irradiation-induced columnar defects (0.5 GeV I-ions) on flux line pinning in Bi-2212 crystals has been investigated by means of the high-resolution magneto-optical Faraday effect. By irradiating only a part of each sample, the local change in the flux pinning has been determined. Irradiated and nonirradiated parts have been investigated simultaneously under the same experimental conditions. At T = 5 K and μ0Hext = (0 4 300) mT a large enhancement of jc m is found in the irradiated region. The observation of the time dependence of the flux density distribution yields small values for the pinning potential U, supporting the model of two-dimensional pancake vortex pinning.

本文言語English
ページ(範囲)323-328
ページ数6
ジャーナルEPL
19
4
DOI
出版ステータスPublished - 1992 6 15
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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