Ba2(Cu0.7Cd0.3)O3: a new double-center perovskite structure

W. J. Yu; Zh Q. Mao; Sh J. Feng; M. L. Tian; G. E. Zhou; Y. H. Zhang

doi:10.1016/0921-4534(94)90847-8

Ba₂(Cu_0.7Cd_0.3)O₃: a new double-center perovskite structure

W. J. Yu, Zh Q. Mao, Sh J. Feng, M. L. Tian, G. E. Zhou, Y. H. Zhang

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

2 Scopus citations

Abstract

A new phase of Ba₂(Cu_0.7Cd_0.3)O₃ has been discovered. The composition of the phase was examined by energy dispersive X-ray spectrometry. The phase exhibits a tetragonal structure with lattice constants a=4.077 A ̊ and c=7.970 A ̊, and its space group is P4/mmm. We propose a double-center-perovskite structure model, which is similar to that of (Ba, Sr)₂CuO₂(CO₃) [1, 2]. The simulated XRD is close to the observed one. The analysis results of elemental analyzer and Fourier transform infrared spectrometer reveal that the phase does not contain CO 2 3-. The cuprate is an insulator, but its new cell structure and the large size of the CuO₂ planes seem to suggest a good reason for researching new superconductors. The roles of CdO in the solid state reaction and the formation of the new phase are discussed.

Original language	English (US)
Pages (from-to)	323-326
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	230
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(94)90847-8
State	Published - Sep 10 1994

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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title = "Ba2(Cu0.7Cd0.3)O3: a new double-center perovskite structure",

abstract = "A new phase of Ba2(Cu0.7Cd0.3)O3 has been discovered. The composition of the phase was examined by energy dispersive X-ray spectrometry. The phase exhibits a tetragonal structure with lattice constants a=4.077 A ̊ and c=7.970 A ̊, and its space group is P4/mmm. We propose a double-center-perovskite structure model, which is similar to that of (Ba, Sr)2CuO2(CO3) [1, 2]. The simulated XRD is close to the observed one. The analysis results of elemental analyzer and Fourier transform infrared spectrometer reveal that the phase does not contain CO 2 3-. The cuprate is an insulator, but its new cell structure and the large size of the CuO2 planes seem to suggest a good reason for researching new superconductors. The roles of CdO in the solid state reaction and the formation of the new phase are discussed.",

author = "Yu, {W. J.} and Mao, {Zh Q.} and Feng, {Sh J.} and Tian, {M. L.} and Zhou, {G. E.} and Zhang, {Y. H.}",

year = "1994",

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doi = "10.1016/0921-4534(94)90847-8",

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pages = "323--326",

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T1 - Ba2(Cu0.7Cd0.3)O3

T2 - a new double-center perovskite structure

AU - Yu, W. J.

AU - Mao, Zh Q.

AU - Feng, Sh J.

AU - Tian, M. L.

AU - Zhou, G. E.

AU - Zhang, Y. H.

PY - 1994/9/10

Y1 - 1994/9/10

N2 - A new phase of Ba2(Cu0.7Cd0.3)O3 has been discovered. The composition of the phase was examined by energy dispersive X-ray spectrometry. The phase exhibits a tetragonal structure with lattice constants a=4.077 A ̊ and c=7.970 A ̊, and its space group is P4/mmm. We propose a double-center-perovskite structure model, which is similar to that of (Ba, Sr)2CuO2(CO3) [1, 2]. The simulated XRD is close to the observed one. The analysis results of elemental analyzer and Fourier transform infrared spectrometer reveal that the phase does not contain CO 2 3-. The cuprate is an insulator, but its new cell structure and the large size of the CuO2 planes seem to suggest a good reason for researching new superconductors. The roles of CdO in the solid state reaction and the formation of the new phase are discussed.

AB - A new phase of Ba2(Cu0.7Cd0.3)O3 has been discovered. The composition of the phase was examined by energy dispersive X-ray spectrometry. The phase exhibits a tetragonal structure with lattice constants a=4.077 A ̊ and c=7.970 A ̊, and its space group is P4/mmm. We propose a double-center-perovskite structure model, which is similar to that of (Ba, Sr)2CuO2(CO3) [1, 2]. The simulated XRD is close to the observed one. The analysis results of elemental analyzer and Fourier transform infrared spectrometer reveal that the phase does not contain CO 2 3-. The cuprate is an insulator, but its new cell structure and the large size of the CuO2 planes seem to suggest a good reason for researching new superconductors. The roles of CdO in the solid state reaction and the formation of the new phase are discussed.

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ER -

Ba₂(Cu_0.7Cd_0.3)O₃: a new double-center perovskite structure

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