Teneur en oxygène des nouveaux cuprates à structure T* Nd1.2Sr0.8-xY(Ln)xCuO4-δ (Ln = Ho, Er, Yb)

Translated title of the contribution: Oxygen amount of the T* structure cuprates of Nd1.2Sr0.8-xY(Ln)xCuO4-δ (Ln = Ho, Er, Yb)

Gabriel Cǎruntu, Dumitru Gânju, Jacques Choisnet, Paule Mouron

Research output: Contribution to journalArticlepeer-review

Abstract

We have established, by total reduction under hydrogen, the oxygen amount of the new T* cuprates Nd1.2Sr0.8-xY(Ln)xCuO4-δ (Ln = Ho, Er, Yb) and their behavior under controlled reduction and oxidation. The lack of any plateau of the thermogravimetric curve indicates the absence of any intermediate structure which can be stabilized by a step by step reduction. Conversely, the oxidation reveals a very good stability of these phases for incorporating supplementary oxygen.

Translated title of the contributionOxygen amount of the T* structure cuprates of Nd1.2Sr0.8-xY(Ln)xCuO4-δ (Ln = Ho, Er, Yb)
Original languageFrench
Pages (from-to)741-745
Number of pages5
JournalRevue Roumaine de Chimie
Volume46
Issue number7
StatePublished - Jul 2001

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