Superconductivity in La-doped Bi “2201”

DC SINCLAIR; S TAIT; JTS IRVINE; AR WEST; John Thomas Sirr Irvine

doi:10.1016/0921-4534(93)90398-A

Superconductivity in La-doped Bi “2201”

DC SINCLAIR^*, S TAIT, JTS IRVINE, AR WEST, John Thomas Sirr Irvine

^*Corresponding author for this work

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

Abstract

La3+ substitution into the Bi 2201 structure, of the ''ideal'' composition Bi2Sr2CuOdelta, has been investigated by means of an extensive phase diagram study into the solid solution formation al 885-degrees-C in air. Single phase solid solutions may be represented by the formula Bi2+xSr2-x-yLayCuOdelta, where y has a maximum value of 0.6, With increasing La content, the crystal symmetry changes from orthorhombic to tetragonal and the incommensurate supercell becomes less pronounced, as indicated by a decrease in intensity of the supercell X-ray powder reflections. Superconducting T(conset) values vary systematically with cation contents x, y and oxygen content delta; a maximum T(c) of 36.5 K is observed for composition x= -0.05, y=0.4.

Original language	English
Pages (from-to)	323-328
Number of pages	6
Journal	Physica C: Superconductivity
Volume	205
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(93)90398-A
Publication status	Published - 1 Feb 1993

Keywords

PHASES
SYSTEM
BI2+XSR2-XCUOZ

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10.1016/0921-4534(93)90398-A

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title = "Superconductivity in La-doped Bi “2201”",

abstract = "La3+ substitution into the Bi 2201 structure, of the ''ideal'' composition Bi2Sr2CuOdelta, has been investigated by means of an extensive phase diagram study into the solid solution formation al 885-degrees-C in air. Single phase solid solutions may be represented by the formula Bi2+xSr2-x-yLayCuOdelta, where y has a maximum value of 0.6, With increasing La content, the crystal symmetry changes from orthorhombic to tetragonal and the incommensurate supercell becomes less pronounced, as indicated by a decrease in intensity of the supercell X-ray powder reflections. Superconducting T(conset) values vary systematically with cation contents x, y and oxygen content delta; a maximum T(c) of 36.5 K is observed for composition x= -0.05, y=0.4.",

keywords = "PHASES, SYSTEM, BI2+XSR2-XCUOZ",

author = "DC SINCLAIR and S TAIT and JTS IRVINE and AR WEST and Irvine, {John Thomas Sirr}",

year = "1993",

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doi = "10.1016/0921-4534(93)90398-A",

language = "English",

volume = "205",

pages = "323--328",

journal = "Physica C: Superconductivity",

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TY - JOUR

T1 - Superconductivity in La-doped Bi “2201”

AU - SINCLAIR, DC

AU - TAIT, S

AU - IRVINE, JTS

AU - WEST, AR

AU - Irvine, John Thomas Sirr

PY - 1993/2/1

Y1 - 1993/2/1

N2 - La3+ substitution into the Bi 2201 structure, of the ''ideal'' composition Bi2Sr2CuOdelta, has been investigated by means of an extensive phase diagram study into the solid solution formation al 885-degrees-C in air. Single phase solid solutions may be represented by the formula Bi2+xSr2-x-yLayCuOdelta, where y has a maximum value of 0.6, With increasing La content, the crystal symmetry changes from orthorhombic to tetragonal and the incommensurate supercell becomes less pronounced, as indicated by a decrease in intensity of the supercell X-ray powder reflections. Superconducting T(conset) values vary systematically with cation contents x, y and oxygen content delta; a maximum T(c) of 36.5 K is observed for composition x= -0.05, y=0.4.

AB - La3+ substitution into the Bi 2201 structure, of the ''ideal'' composition Bi2Sr2CuOdelta, has been investigated by means of an extensive phase diagram study into the solid solution formation al 885-degrees-C in air. Single phase solid solutions may be represented by the formula Bi2+xSr2-x-yLayCuOdelta, where y has a maximum value of 0.6, With increasing La content, the crystal symmetry changes from orthorhombic to tetragonal and the incommensurate supercell becomes less pronounced, as indicated by a decrease in intensity of the supercell X-ray powder reflections. Superconducting T(conset) values vary systematically with cation contents x, y and oxygen content delta; a maximum T(c) of 36.5 K is observed for composition x= -0.05, y=0.4.

KW - PHASES

KW - SYSTEM

KW - BI2+XSR2-XCUOZ

U2 - 10.1016/0921-4534(93)90398-A

DO - 10.1016/0921-4534(93)90398-A

M3 - Article

SN - 0921-4534

VL - 205

SP - 323

EP - 328

JO - Physica C: Superconductivity

JF - Physica C: Superconductivity

IS - 3-4

ER -

Superconductivity in La-doped Bi “2201”

Abstract

Keywords

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