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

Noriko Chikumoto; Shinobu Ozawa; Masato Murakami

doi:10.1016/S0964-1807(98)00097-0

Effects of oxygen on the superconducting properties of Nd_1+xBa_2-xCu₃O_7-δ (0 ≤ x ≤ 0.4) solid solution

Noriko Chikumoto, Shinobu Ozawa, Masato Murakami

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2 Citations (Scopus)

Abstract

We have studied the relationship between the oxygen content and superconducting properties for a series of Nd_1+xBa_2-xCu₃O_7-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 T_c increased monotonically with a decrease in the annealing temperature T_a, while T_c for the samples with larger x values showed non-monotonic T_a dependence. The T_a value required to achieve the highest T_c was higher than that for the largest x. On the other hand, the pinning properties improved with a decrease in T_a.

Original language	English
Pages (from-to)	163-168
Number of pages	6
Journal	Applied Superconductivity
Volume	6
Issue number	2-5
DOIs	https://doi.org/10.1016/S0964-1807(98)00097-0
Publication status	Published - 1998 Jan 1

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ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Chikumoto, N., Ozawa, S., & Murakami, M. (1998). Effects of oxygen on the superconducting properties of Nd_1+xBa_2-xCu₃O_7-δ (0 ≤ x ≤ 0.4) solid solution. Applied Superconductivity, 6(2-5), 163-168. https://doi.org/10.1016/S0964-1807(98)00097-0

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10.1016/S0964-1807(98)00097-0