Surface pinning in niobium and a high-Tc superconductor

P. K. Mishra, G. Ravikumar, V. C. Sahni, Michael Rudolf Koblischka, A. K. Grover

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We present magnetization-hysteresis measurements on a well annealed thin niobium sample. We observe that the magnetization hysteresis is inversely proportional to the applied magnetic field and the reverse magnetization is constant over a large range of the applied field; both are well known features associated with surface-barrier effects. We see a "shoulder"-like structure in the hysteresis loop. This behavior is also observed in the hysteresis loops of Bi2Sr2CaCu2O8 single crystal, between 30 K and 40 K. We analyze our results of magnetization measurements, in both niobium and Bi2Sr2CaCu2O8, in the light of the surface-pinning effect.

Original languageEnglish
Pages (from-to)71-75
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume269
Issue number1-2
DOIs
Publication statusPublished - 1996 Sep 20
Externally publishedYes

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Niobium
niobium
Superconducting materials
Magnetization
hysteresis
magnetization
Hysteresis loops
Hysteresis
shoulders
Single crystals
Magnetic fields
single crystals
magnetic fields

ASJC Scopus subject areas

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

Cite this

Surface pinning in niobium and a high-Tc superconductor. / Mishra, P. K.; Ravikumar, G.; Sahni, V. C.; Koblischka, Michael Rudolf; Grover, A. K.

In: Physica C: Superconductivity and its Applications, Vol. 269, No. 1-2, 20.09.1996, p. 71-75.

Research output: Contribution to journalArticle

Mishra, P. K. ; Ravikumar, G. ; Sahni, V. C. ; Koblischka, Michael Rudolf ; Grover, A. K. / Surface pinning in niobium and a high-Tc superconductor. In: Physica C: Superconductivity and its Applications. 1996 ; Vol. 269, No. 1-2. pp. 71-75.
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