Nanostripes in GdBa2Cu3Ox high-Tc superconductors

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

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

High-Tc superconductors with light rare earth (LRE) elements instead of Y exhibit nanoscale stripe structures on the surface as observed by atomic force microscopy (AFM) and scanning tunneling microscopy (STM) scans. Within the GdBa2Cu3Ox (GdBCO) system exhibiting relatively high critical current densities, nanoclusters arranged in a stripe-like fashion are observed in undoped material, while adding of nanoparticles (ZnO2, ZrO2) leads to the formation of nanostripes as observed in other LRE superconductors. The nanostripes in doped GdBCO exhibit periodicties between 20 and 50 nm and corresponding step heights of 0.3-0.8 nm. Using polarized light microscopy and electron backscatter diffraction (EBSD) analysis, we determined the direction of the nanostripes with respect to the known twin structure.

Original languageEnglish
Pages (from-to)74-78
Number of pages5
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume151
Issue number1
DOIs
Publication statusPublished - 2008 Jun 15

Keywords

  • EBSD
  • GdBaCuO
  • Nanostripes
  • Orientation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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