Position-dependent analysis of nanostripes in bulk light-rare-earth superconductors

M. R. Koblischka, M. Muralidhar, P. Meiser, J. Meiser, U. Hartmann

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The light rare-earth based bulk superconductors were found recently to exhibit self-organized nanostripes, especially pronounced in the ternary compound (Nd,Eu,Gd)Ba2Cu3Ox. The nanostripes, consisting of aligned nanoclusters (dimensions 10-50 nm in diameter), are formed during the sample growth, so it is an essential issue for the production of such samples to be able to control the formation of these nanostripes in order to generate effective pinning sites at high magnetic fields. Here, we investigate bulk pellets with a diameter of 18 mm and a height of 10 mm. These pellets are characterized prior to the cutting by means of trapped field measurements. Small samples are cut from the bulk pellet in various growth directions and sample sectors. The nanoscopic investigations are performed using atomic force microscopy and scanning tunneling microscopy in ambient conditions.

Original languageEnglish
Pages (from-to)35-38
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume496
Issue numberC
DOIs
Publication statusPublished - 2014 Jan 15

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Keywords

  • 123-type superconductors
  • AFM
  • Bulk materials
  • Nanostripes
  • Ternary
  • Texture

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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