Pinning analyses of a BaHfO3-containing GdBa2Cu3O7-δthin film grown by chemical solution deposition

Kazumasa Iida, Pablo Cayado, Hannes Rijckaert, Manuela Erbe, Jens H nisch, Tatsunori Okada, Isabel Van Driessche, Satoshi Awaji, Bernhard Holzapfel

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The electric transport properties of a GdBa2Cu3O7-δ thin film containing 12 mol% nano-sized BaHfO3 (BHO) particles grown by chemical solution deposition were investigated in a wide range of temperatures (4.2 ≤T ≤ 77 K) and magnetic fields up to μ0H = 19 T. The exponent n of the electric field-current density characteristics (E ∞Jn) depends on critical current density Jc as (n-1)∞Jαc (α∼0.45) irrespective of measurement temperature for H ≈ c. On the other hand, this relation does not hold for H ≈ ab. The angular dependence of Jc is almost similar to that of n except for the angle close to the ab-plane. A dip of n around this angle regime was observed below 77 K, whereas Jc exhibited a maximum. At T ≤50 K a tiny peak in the dip was observed that increases with decreasing temperatures. These results suggest that the pinning mechanism changes with temperature for H ≈ ab.

Original languageEnglish
Article number015009
JournalSuperconductor Science and Technology
Volume34
Issue number1
DOIs
Publication statusPublished - 2021 Jan 1

Keywords

  • BHO nano-particles
  • GdBCO thin film
  • chemical solution deposition
  • electrical transport properties

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Pinning analyses of a BaHfO<sub>3</sub>-containing GdBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub>thin film grown by chemical solution deposition'. Together they form a unique fingerprint.

Cite this