Nanostripes in (Nd0.33Eu0.28Gd0.38)Ba 2Cu3Ox superconductors

M. R. Koblischka; M. Winter; A. Koblischka-Veneva; M. Muralidhar; F. Mücklich; U. Hartmann

doi:10.1063/1.2770774

Nanostripes in (Nd_0.33Eu_0.28Gd_0.38)Ba ₂Cu₃O_x superconductors

M. R. Koblischka, M. Winter, A. Koblischka-Veneva, M. Muralidhar, F. Mücklich, U. Hartmann

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Nanostripes are observed in melt-textured, Gd-enriched light-rare-earth (LRE)-based ternary (Nd0.33 Eu0.28 Gd0.38) Ba2 Cu3 Ox (NEG-38) superconductors. Employing atomic force microscopy/scanning tunneling microscopy topographic scans together with electron backscatter diffraction (EBSD) analysis, the authors determine the direction of the nanostripes with respect to the twin structure. Details of the topography measurements and of the EBSD maps reveal that the nanostripes are composed of nanoclusters of the LRE-rich phase. The nanostripes in the NEG-38 samples have a periodicity of about 40-60 nm, and in lateral direction between 300 and 500 nm. The role of these nanostripes for flux pinning in these compounds is discussed.

Original language	English
Article number	082508
Journal	Applied Physics Letters
Volume	91
Issue number	8
DOIs	https://doi.org/10.1063/1.2770774
Publication status	Published - 2007 Aug 31
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Nanostripes in (Nd0.33Eu0.28Gd0.38)Ba 2Cu3Ox superconductors",

abstract = "Nanostripes are observed in melt-textured, Gd-enriched light-rare-earth (LRE)-based ternary (Nd0.33 Eu0.28 Gd0.38) Ba2 Cu3 Ox (NEG-38) superconductors. Employing atomic force microscopy/scanning tunneling microscopy topographic scans together with electron backscatter diffraction (EBSD) analysis, the authors determine the direction of the nanostripes with respect to the twin structure. Details of the topography measurements and of the EBSD maps reveal that the nanostripes are composed of nanoclusters of the LRE-rich phase. The nanostripes in the NEG-38 samples have a periodicity of about 40-60 nm, and in lateral direction between 300 and 500 nm. The role of these nanostripes for flux pinning in these compounds is discussed.",

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AU - Koblischka, M. R.

AU - Winter, M.

AU - Koblischka-Veneva, A.

AU - Muralidhar, M.

AU - Mücklich, F.

AU - Hartmann, U.

PY - 2007/8/31

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