The formation of infinite-layer cuprates and correlation with temperature and partial pressure of oxygen

Chia-Jyi Liu; S. Koriyama; H. Yamauchi

doi:10.1016/0921-4534(93)90241-H

The formation of infinite-layer cuprates and correlation with temperature and partial pressure of oxygen

Chia-Jyi Liu, S. Koriyama, H. Yamauchi

Department of Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Various combinations of calcination temperature and oxygen partial pressures have been investigated to stabilize the infinite-layer structure in Ca_1-xSr_xCuO₂ and (Ca_1-x-yY_y)Sr_xCuO₂ systems using a solid-state reaction method. It is found that the stability of infinite-layer structure for different compositions strongly depends on the calcination conditions. The infinite-layer structure is stable in the range of 0.12 ≤ x ≤ 0.16 for Ca_1-xSr_xCuO₂ at the calcination conditions of 940°C and 3% partial pressure of oxygen, and also in the range of 0.08 ≤ x ≤ 0.12 at the calcination conditions of 1020°C and 1 atm of flowing oxygen. The solubility limit extends to the range of 0.10 ≤ x ≤ 0.20 for y = 0.02 in Ca_1-x-yY_ySr_xCuO₂ prepared at 940°C under 3% partial pressure of oxygen.

Original language	English
Pages (from-to)	395-401
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	215
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(93)90241-H
Publication status	Published - 1993 Oct 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(93)90241-H

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title = "The formation of infinite-layer cuprates and correlation with temperature and partial pressure of oxygen",

abstract = "Various combinations of calcination temperature and oxygen partial pressures have been investigated to stabilize the infinite-layer structure in Ca1-xSrxCuO2 and (Ca1-x-yYy)SrxCuO2 systems using a solid-state reaction method. It is found that the stability of infinite-layer structure for different compositions strongly depends on the calcination conditions. The infinite-layer structure is stable in the range of 0.12 ≤ x ≤ 0.16 for Ca1-xSrxCuO2 at the calcination conditions of 940°C and 3% partial pressure of oxygen, and also in the range of 0.08 ≤ x ≤ 0.12 at the calcination conditions of 1020°C and 1 atm of flowing oxygen. The solubility limit extends to the range of 0.10 ≤ x ≤ 0.20 for y = 0.02 in Ca1-x-yYySrxCuO2 prepared at 940°C under 3% partial pressure of oxygen.",

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T1 - The formation of infinite-layer cuprates and correlation with temperature and partial pressure of oxygen

AU - Liu, Chia-Jyi

AU - Koriyama, S.

AU - Yamauchi, H.

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Y1 - 1993/10/1

N2 - Various combinations of calcination temperature and oxygen partial pressures have been investigated to stabilize the infinite-layer structure in Ca1-xSrxCuO2 and (Ca1-x-yYy)SrxCuO2 systems using a solid-state reaction method. It is found that the stability of infinite-layer structure for different compositions strongly depends on the calcination conditions. The infinite-layer structure is stable in the range of 0.12 ≤ x ≤ 0.16 for Ca1-xSrxCuO2 at the calcination conditions of 940°C and 3% partial pressure of oxygen, and also in the range of 0.08 ≤ x ≤ 0.12 at the calcination conditions of 1020°C and 1 atm of flowing oxygen. The solubility limit extends to the range of 0.10 ≤ x ≤ 0.20 for y = 0.02 in Ca1-x-yYySrxCuO2 prepared at 940°C under 3% partial pressure of oxygen.

AB - Various combinations of calcination temperature and oxygen partial pressures have been investigated to stabilize the infinite-layer structure in Ca1-xSrxCuO2 and (Ca1-x-yYy)SrxCuO2 systems using a solid-state reaction method. It is found that the stability of infinite-layer structure for different compositions strongly depends on the calcination conditions. The infinite-layer structure is stable in the range of 0.12 ≤ x ≤ 0.16 for Ca1-xSrxCuO2 at the calcination conditions of 940°C and 3% partial pressure of oxygen, and also in the range of 0.08 ≤ x ≤ 0.12 at the calcination conditions of 1020°C and 1 atm of flowing oxygen. The solubility limit extends to the range of 0.10 ≤ x ≤ 0.20 for y = 0.02 in Ca1-x-yYySrxCuO2 prepared at 940°C under 3% partial pressure of oxygen.

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