Bulk superconductivity in La1.85Sr0.5CuO4 and in La1.6Eu0.25Sr0.15CuO4

I. Felner

doi:10.1016/0038-1098(87)90821-0

Bulk superconductivity in La_1.85Sr_0.5CuO₄ and in La_1.6Eu_0.25Sr_0.15CuO₄

I. Felner^*

^*Corresponding author for this work

Racah Institute of Physics

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

7 Scopus citations

Abstract

Metallic - oxygen compounds in pseudo ternary systems LaCuMO with M=Sr, Pb have been prepared by high temperature solid state reaction under different conditions. The susceptibility measurements on La_1.85Sr_0.15CuO₄ show the onset of superconductivity at T_c=41K and Hc₁ of 450 Oe. at 4.1K. Substitution of Sr by Pb destroys this superconductivity. For the Eu doped sample T_c=17K, while La_1.6Y_0.25Sr_0.15CuO₄ does not exhibit superconductivity down to 4.1K. The tetragonal lattice of LaSrCuO shrinks in the a axis and expands in the c axis compared to R₂CuO₄ R=PrGd. The role of this distortion in the metallic conductivity and superconductivity mechanism is discussed.

Original language	English
Pages (from-to)	791-794
Number of pages	4
Journal	Solid State Communications
Volume	62
Issue number	12
DOIs	https://doi.org/10.1016/0038-1098(87)90821-0
State	Published - Jun 1987

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title = "Bulk superconductivity in La1.85Sr0.5CuO4 and in La1.6Eu0.25Sr0.15CuO4",

abstract = "Metallic - oxygen compounds in pseudo ternary systems LaCuMO with M=Sr, Pb have been prepared by high temperature solid state reaction under different conditions. The susceptibility measurements on La1.85Sr0.15CuO4 show the onset of superconductivity at Tc=41K and Hc1 of 450 Oe. at 4.1K. Substitution of Sr by Pb destroys this superconductivity. For the Eu doped sample Tc=17K, while La1.6Y0.25Sr0.15CuO4 does not exhibit superconductivity down to 4.1K. The tetragonal lattice of LaSrCuO shrinks in the a axis and expands in the c axis compared to R2CuO4 R=PrGd. The role of this distortion in the metallic conductivity and superconductivity mechanism is discussed.",

author = "I. Felner",

year = "1987",

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T1 - Bulk superconductivity in La1.85Sr0.5CuO4 and in La1.6Eu0.25Sr0.15CuO4

AU - Felner, I.

PY - 1987/6

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N2 - Metallic - oxygen compounds in pseudo ternary systems LaCuMO with M=Sr, Pb have been prepared by high temperature solid state reaction under different conditions. The susceptibility measurements on La1.85Sr0.15CuO4 show the onset of superconductivity at Tc=41K and Hc1 of 450 Oe. at 4.1K. Substitution of Sr by Pb destroys this superconductivity. For the Eu doped sample Tc=17K, while La1.6Y0.25Sr0.15CuO4 does not exhibit superconductivity down to 4.1K. The tetragonal lattice of LaSrCuO shrinks in the a axis and expands in the c axis compared to R2CuO4 R=PrGd. The role of this distortion in the metallic conductivity and superconductivity mechanism is discussed.

AB - Metallic - oxygen compounds in pseudo ternary systems LaCuMO with M=Sr, Pb have been prepared by high temperature solid state reaction under different conditions. The susceptibility measurements on La1.85Sr0.15CuO4 show the onset of superconductivity at Tc=41K and Hc1 of 450 Oe. at 4.1K. Substitution of Sr by Pb destroys this superconductivity. For the Eu doped sample Tc=17K, while La1.6Y0.25Sr0.15CuO4 does not exhibit superconductivity down to 4.1K. The tetragonal lattice of LaSrCuO shrinks in the a axis and expands in the c axis compared to R2CuO4 R=PrGd. The role of this distortion in the metallic conductivity and superconductivity mechanism is discussed.

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JO - Solid State Communications

JF - Solid State Communications

IS - 12

ER -

Bulk superconductivity in La_1.85Sr_0.5CuO₄ and in La_1.6Eu_0.25Sr_0.15CuO₄

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