On the solid solutions in the systems Bi2Sr2Ca1-xYxCu2O8+δ, Bi2Sr2-xLaxYCu2O8+δ and Bi2Sr2Y1-xCexCu2O8+δ

S. Olivier; W. A. Groen; C. van der Beek; H. W. Zandbergen

doi:10.1016/0921-4534(89)90282-7

On the solid solutions in the systems Bi₂Sr₂Ca_1-xY_xCu₂O_8+δ, Bi₂Sr_2-xLa_xYCu₂O_8+δ and Bi₂Sr₂Y_1-xCe_xCu₂O_8+δ

S. Olivier
, W. A. Groen
, C. van der Beek
, H. W. Zandbergen

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

Abstract

Solid solutions of Bi₂Sr₂Ca_1-xY_xCu₂O_8+δ, Bi₂Sr_2-xLa_xYCu₂O_8+δ and Bi₂Sr₂Y_1-xCe_xCu₂O_8+δ have been investigated. In the system Bi₂Sr₂Ca_1-xY_xCu₂O_8+δ the most significant feature is a drop in the length of the c axis from 3.08 nm for the x < 0.25 to 3.02 nm for x > 0.35. With increasing amount of Ce the length of the c axis increases up to 3.08 nm. This is due to the substitution of Sr on the Ca site. In the system Bi₂Sr_2-xLa_xYCu₂O_8+δ increase of La leads to Sr partially occupying the Ca site. The Y rich material shows a significant difference between the a and the b axis. Incorporation of 20% of Y does not lead to a significant drop in T_c. When the surplus of charge due to the substitution by cations with a higher valency is more than +0.30 the material is not superconducting anymore. Often a composition range in x is obtained, with a width of at least 0.2. The observed change in the c axis and the superconducting properties is explained with a model with extra oxygen in the BiO layers. With mainly Sr on the Sr site the extra amount of oxygen seems to be restricted to 0.25 per BiO unit.

Original language	English
Pages (from-to)	531-536
Number of pages	6
Journal	Physica C: Superconductivity and its Applications
Volume	157
Issue number	3
DOIs	https://doi.org/10.1016/0921-4534(89)90282-7
Publication status	Published - 1 Mar 1989
Externally published	Yes

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@article{f13a91d23dea40899fb9575193ead869,

title = "On the solid solutions in the systems Bi2Sr2Ca1-xYxCu2O8+δ, Bi2Sr2-xLaxYCu2O8+δ and Bi2Sr2Y1-xCexCu2O8+δ",

abstract = "Solid solutions of Bi2Sr2Ca1-xYxCu2O8+δ, Bi2Sr2-xLaxYCu2O8+δ and Bi2Sr2Y1-xCexCu2O8+δ have been investigated. In the system Bi2Sr2Ca1-xYxCu2O8+δ the most significant feature is a drop in the length of the c axis from 3.08 nm for the x < 0.25 to 3.02 nm for x > 0.35. With increasing amount of Ce the length of the c axis increases up to 3.08 nm. This is due to the substitution of Sr on the Ca site. In the system Bi2Sr2-xLaxYCu2O8+δ increase of La leads to Sr partially occupying the Ca site. The Y rich material shows a significant difference between the a and the b axis. Incorporation of 20\% of Y does not lead to a significant drop in Tc. When the surplus of charge due to the substitution by cations with a higher valency is more than +0.30 the material is not superconducting anymore. Often a composition range in x is obtained, with a width of at least 0.2. The observed change in the c axis and the superconducting properties is explained with a model with extra oxygen in the BiO layers. With mainly Sr on the Sr site the extra amount of oxygen seems to be restricted to 0.25 per BiO unit.",

author = "S. Olivier and Groen, \{W. A.\} and \{van der Beek\}, C. and Zandbergen, \{H. W.\}",

year = "1989",

month = mar,

day = "1",

doi = "10.1016/0921-4534(89)90282-7",

language = "English",

volume = "157",

pages = "531--536",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

number = "3",

}

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T1 - On the solid solutions in the systems Bi2Sr2Ca1-xYxCu2O8+δ, Bi2Sr2-xLaxYCu2O8+δ and Bi2Sr2Y1-xCexCu2O8+δ

AU - Olivier, S.

AU - Groen, W. A.

AU - van der Beek, C.

AU - Zandbergen, H. W.

PY - 1989/3/1

Y1 - 1989/3/1

N2 - Solid solutions of Bi2Sr2Ca1-xYxCu2O8+δ, Bi2Sr2-xLaxYCu2O8+δ and Bi2Sr2Y1-xCexCu2O8+δ have been investigated. In the system Bi2Sr2Ca1-xYxCu2O8+δ the most significant feature is a drop in the length of the c axis from 3.08 nm for the x < 0.25 to 3.02 nm for x > 0.35. With increasing amount of Ce the length of the c axis increases up to 3.08 nm. This is due to the substitution of Sr on the Ca site. In the system Bi2Sr2-xLaxYCu2O8+δ increase of La leads to Sr partially occupying the Ca site. The Y rich material shows a significant difference between the a and the b axis. Incorporation of 20% of Y does not lead to a significant drop in Tc. When the surplus of charge due to the substitution by cations with a higher valency is more than +0.30 the material is not superconducting anymore. Often a composition range in x is obtained, with a width of at least 0.2. The observed change in the c axis and the superconducting properties is explained with a model with extra oxygen in the BiO layers. With mainly Sr on the Sr site the extra amount of oxygen seems to be restricted to 0.25 per BiO unit.

AB - Solid solutions of Bi2Sr2Ca1-xYxCu2O8+δ, Bi2Sr2-xLaxYCu2O8+δ and Bi2Sr2Y1-xCexCu2O8+δ have been investigated. In the system Bi2Sr2Ca1-xYxCu2O8+δ the most significant feature is a drop in the length of the c axis from 3.08 nm for the x < 0.25 to 3.02 nm for x > 0.35. With increasing amount of Ce the length of the c axis increases up to 3.08 nm. This is due to the substitution of Sr on the Ca site. In the system Bi2Sr2-xLaxYCu2O8+δ increase of La leads to Sr partially occupying the Ca site. The Y rich material shows a significant difference between the a and the b axis. Incorporation of 20% of Y does not lead to a significant drop in Tc. When the surplus of charge due to the substitution by cations with a higher valency is more than +0.30 the material is not superconducting anymore. Often a composition range in x is obtained, with a width of at least 0.2. The observed change in the c axis and the superconducting properties is explained with a model with extra oxygen in the BiO layers. With mainly Sr on the Sr site the extra amount of oxygen seems to be restricted to 0.25 per BiO unit.

U2 - 10.1016/0921-4534(89)90282-7

DO - 10.1016/0921-4534(89)90282-7

M3 - Article

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SN - 0921-4534

VL - 157

SP - 531

EP - 536

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 3

ER -

On the solid solutions in the systems Bi2Sr2Ca1-xYxCu2O8+δ, Bi2Sr2-xLaxYCu2O8+δ and Bi2Sr2Y1-xCexCu2O8+δ

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On the solid solutions in the systems Bi₂Sr₂Ca_1-xY_xCu₂O_8+δ, Bi₂Sr_2-xLa_xYCu₂O_8+δ and Bi₂Sr₂Y_1-xCe_xCu₂O_8+δ