Effects of oxygen on the superconducting properties of Nd1+xBa2-xCu3O7-δ (0 ≤ x ≤ 0.4) solid solution

Noriko Chikumoto, Shinobu Ozawa, Masato Murakami

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We have studied the relationship between the oxygen content and superconducting properties for a series of Nd1+xBa2-xCu3O7-δ (0 ≤ x ≤ 0.4) solid solution. The temperature variation of oxygen content was studied as a function of x by means of both TG-DTA and chemical compositional analyses. The amount of oxygen absorbed during oxygen annealing was found to decrease with an increasing Nd content. In the sample with x = 0, the superconductivity transition temperature Tc increased monotonically with a decrease in the annealing temperature Ta, while Tc for the samples with larger x values showed non-monotonic Ta dependence. The Ta value required to achieve the highest Tc was higher than that for the largest x. On the other hand, the pinning properties improved with a decrease in Ta.

Original languageEnglish
Pages (from-to)163-168
Number of pages6
JournalApplied Superconductivity
Volume6
Issue number2-5
Publication statusPublished - 1998 Feb
Externally publishedYes

Fingerprint

Solid solutions
solid solutions
Oxygen
oxygen
Annealing
annealing
Superconductivity
Differential thermal analysis
Superconducting transition temperature
thermal analysis
superconductivity
transition temperature
Temperature
temperature

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Effects of oxygen on the superconducting properties of Nd1+xBa2-xCu3O7-δ (0 ≤ x ≤ 0.4) solid solution. / Chikumoto, Noriko; Ozawa, Shinobu; Murakami, Masato.

In: Applied Superconductivity, Vol. 6, No. 2-5, 02.1998, p. 163-168.

Research output: Contribution to journalArticle

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