Pinning forces and scaling in high-Tc superconductors

Research output: Contribution to journalArticle

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Abstract

The volume pinning forces, Fp, of several high-Tc superconductors are compared to each other using literature data and to those obtained in NdBa2Cu3O7-δ samples. It is shown that the pinning at small normal inclusions which is dominant in most high-Tc systems, leads to a peak at around 0.3 when plotting the normalized volume pinning forces, Fp/Fp,max, versus the reduced field defined by h = H/Hirr. Furthermore, relaxation effects play a significant role in the Fp diagrams, especially in the high h regions thus causing the typical rounded-off 'tail'. In contrast to this, NdBCO shows the peak at ≈0.5, thus indicating a strong pinning at small superconducting regions (ΔK/ΔTc-pinning).

Original languageEnglish
Pages (from-to)2193-2194
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume282
Issue numberPART 4
DOIs
Publication statusPublished - 1997 Jan 1
Externally publishedYes

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Superconducting materials
scaling
plotting
diagrams
inclusions

ASJC Scopus subject areas

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

Cite this

Pinning forces and scaling in high-Tc superconductors. / Koblischka, Michael Rudolf.

In: Physica C: Superconductivity and its Applications, Vol. 282, No. PART 4, 01.01.1997, p. 2193-2194.

Research output: Contribution to journalArticle

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