New type of vortex pinning structure effective at very high magnetic fields

We report on a new type of correlated nanometer-scale pinning structure observed in a melt-processed (Nd0.33Eu0.38Gd0.28)Ba(2)Cu(3)O(y) (NEG-123). It consists of NEG/Ba-rich clusters in the stoichiometric NEG-123 matrix forming a lamellar array with a period of a few nanometers. These lamellas appea...

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Veröffentlicht in:	Physical review letters 2002-12, Vol.89 (23), p.237001-237001, Article 237001
Hauptverfasser:	Muralidhar, M, Sakai, N, Chikumoto, N, Jirsa, M, Machi, T, Nishiyama, M, Wu, Y, Murakami, M
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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