Synthesis and properties of new cuprates (Cd0.5M0.5)Sr2YCu2O7 with the “1212” structure (M = Fe, Co)

W. J. Yu; Z. Q. Mao; C. Y. Xu; M. L. Tian; L. Shi; G. E. Zhou; Y. H. Zhang

doi:10.1002/pssa.2211520204

Synthesis and properties of new cuprates (Cd_0.5M_0.5)Sr₂YCu₂O₇ with the “1212” structure (M = Fe, Co)

W. J. Yu, Z. Q. Mao, C. Y. Xu, M. L. Tian, L. Shi, G. E. Zhou, Y. H. Zhang

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

Abstract

New cuprates of composition (Cd_0.5M_0.5)Sr₂YCu₂O₇ (M = Fe, Co) with the “1212” structure are synthesized. X‐ray diffraction patterns show that both cuprates exhibit a tetragonal 1212‐phase structure. The lattice parameters of (Cd_0.5Fe_0.5)Sr₂YCu₂O₇ are a = 3.809 Å and c = 11.423 Å; those of (Cd_0.5Co_0.5)Sr₂YCu₂O₇ are a = 3.816 Å and c = 11.435 Å. The results of electron diffraction for the samples show that there is a 90° twinning of the c‐axis. The Raman spectra depict an apical‐O(2) vibration mode appearing at 544 cm⁻¹ for (Cd_0.5Fe_0.5)Sr₂YCu₂O₇ and 535 cm⁻¹ for (Cd_0.5Co_0.5)Sr₂YCu₂O₇. The samples act as semiconductors in the temperature range 12 to 300 K.

Original language	English (US)
Pages (from-to)	355-359
Number of pages	5
Journal	physica status solidi (a)
Volume	152
Issue number	2
DOIs	https://doi.org/10.1002/pssa.2211520204
State	Published - Dec 16 1995

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Synthesis and properties of new cuprates (Cd0.5M0.5)Sr2YCu2O7 with the “1212” structure (M = Fe, Co)",

abstract = "New cuprates of composition (Cd0.5M0.5)Sr2YCu2O7 (M = Fe, Co) with the “1212” structure are synthesized. X‐ray diffraction patterns show that both cuprates exhibit a tetragonal 1212‐phase structure. The lattice parameters of (Cd0.5Fe0.5)Sr2YCu2O7 are a = 3.809 {\AA} and c = 11.423 {\AA}; those of (Cd0.5Co0.5)Sr2YCu2O7 are a = 3.816 {\AA} and c = 11.435 {\AA}. The results of electron diffraction for the samples show that there is a 90° twinning of the c‐axis. The Raman spectra depict an apical‐O(2) vibration mode appearing at 544 cm−1 for (Cd0.5Fe0.5)Sr2YCu2O7 and 535 cm−1 for (Cd0.5Co0.5)Sr2YCu2O7. The samples act as semiconductors in the temperature range 12 to 300 K.",

author = "Yu, {W. J.} and Mao, {Z. Q.} and Xu, {C. Y.} and Tian, {M. L.} and L. Shi and Zhou, {G. E.} and Zhang, {Y. H.}",

year = "1995",

month = dec,

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doi = "10.1002/pssa.2211520204",

language = "English (US)",

volume = "152",

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T1 - Synthesis and properties of new cuprates (Cd0.5M0.5)Sr2YCu2O7 with the “1212” structure (M = Fe, Co)

AU - Yu, W. J.

AU - Mao, Z. Q.

AU - Xu, C. Y.

AU - Tian, M. L.

AU - Shi, L.

AU - Zhou, G. E.

AU - Zhang, Y. H.

PY - 1995/12/16

Y1 - 1995/12/16

N2 - New cuprates of composition (Cd0.5M0.5)Sr2YCu2O7 (M = Fe, Co) with the “1212” structure are synthesized. X‐ray diffraction patterns show that both cuprates exhibit a tetragonal 1212‐phase structure. The lattice parameters of (Cd0.5Fe0.5)Sr2YCu2O7 are a = 3.809 Å and c = 11.423 Å; those of (Cd0.5Co0.5)Sr2YCu2O7 are a = 3.816 Å and c = 11.435 Å. The results of electron diffraction for the samples show that there is a 90° twinning of the c‐axis. The Raman spectra depict an apical‐O(2) vibration mode appearing at 544 cm−1 for (Cd0.5Fe0.5)Sr2YCu2O7 and 535 cm−1 for (Cd0.5Co0.5)Sr2YCu2O7. The samples act as semiconductors in the temperature range 12 to 300 K.

AB - New cuprates of composition (Cd0.5M0.5)Sr2YCu2O7 (M = Fe, Co) with the “1212” structure are synthesized. X‐ray diffraction patterns show that both cuprates exhibit a tetragonal 1212‐phase structure. The lattice parameters of (Cd0.5Fe0.5)Sr2YCu2O7 are a = 3.809 Å and c = 11.423 Å; those of (Cd0.5Co0.5)Sr2YCu2O7 are a = 3.816 Å and c = 11.435 Å. The results of electron diffraction for the samples show that there is a 90° twinning of the c‐axis. The Raman spectra depict an apical‐O(2) vibration mode appearing at 544 cm−1 for (Cd0.5Fe0.5)Sr2YCu2O7 and 535 cm−1 for (Cd0.5Co0.5)Sr2YCu2O7. The samples act as semiconductors in the temperature range 12 to 300 K.

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Synthesis and properties of new cuprates (Cd_0.5M_0.5)Sr₂YCu₂O₇ with the “1212” structure (M = Fe, Co)

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