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Scientific article
English

Normal-state susceptibility versus oxygen content in the Y2Ba4Cu7Ox superconducting phase

Published inPhysica C: Superconductivity and Its Applications, vol. 201, no. 1-2, p. 1-5
Publication date1992
Abstract

Extensive measurements of the normal-state susceptibility have been performed on high-quality Y2Ba4Cu7Ox samples with different oxygen contents. We find a temperature dependence of the susceptibility similar to that of other high-Tc superconductors such as YBa2Cu3O7−δ. upon approaching the optimum hole doping, the normal-state susceptibility tends to become temperature-independent except for the region where superconducting fluctuations play a substantial role. For high-Tc samples (onset: 95 K) the susceptibility displays a very large rounding above Tc which can be attributed to 3D-2D superconducting fluctuations. The fluctuation temperature range extends 100 K above Tc.

Citation (ISO format)
TRISCONE, Gilles et al. Normal-state susceptibility versus oxygen content in the Y<sub>2</sub>Ba<sub>4</sub>Cu<sub>7</sub>O<sub>x</sub> superconducting phase. In: Physica C: Superconductivity and Its Applications, 1992, vol. 201, n° 1-2, p. 1–5. doi: 10.1016/0921-4534(92)90096-U
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ISSN of the journal0921-4534
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