Temperature dependence of the peak effect in NdBa2Cu 3O 7-δ single crystals and melt-processed (Sm 0.5Eu0.5)Ba2Cu3O 7-δ single domains

A. Hu, N. Chikumoto, Kazuo Inoue, Masato Murakami

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Magnetization loops of NdBa2Cu3O7-δ (Nd123) single crystals grown under low oxygen partial pressure and melt-processed (Sm0.5Eu0.5)Ba2Cu 3O7-δ (SE123) crystals with post-annealing in Ar were comparatively studied in a wide temperature and field regime. The peak field at which magnetic moment displays the maximum, exhibits a linear temperature dependence in both cases. The fitting shows a slightly lower critical temperature than bulk Tc at null applied field. The temperature dependence of the onset field from which the absolute value of magnetic moment starts to increase, indicates the dominant pinning at low fields in Nd123 single crystals is the surface barrier while the RE211/123 interfacial pinning in melt-processed SE123 crystals.

Original languageEnglish
Pages (from-to)345-348
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct
Externally publishedYes

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magnetic moments
Single crystals
temperature dependence
single crystals
Magnetic moments
crystals
partial pressure
critical temperature
Temperature
magnetization
Crystals
annealing
oxygen
Partial pressure
Magnetization
Annealing
Oxygen
temperature

Keywords

  • Compositional fluctuation
  • Interfacial pinning
  • Peak effect
  • Surface barrier

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Temperature dependence of the peak effect in NdBa2Cu 3O 7-δ single crystals and melt-processed (Sm 0.5Eu0.5)Ba2Cu3O 7-δ single domains. / Hu, A.; Chikumoto, N.; Inoue, Kazuo; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 392-396, No. PART 1, 10.2003, p. 345-348.

Research output: Contribution to journalArticle

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AU - Murakami, Masato

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