The origins of high values of the critical current density in the Bi2Sr2Can-1CunOx system: High-Tc superconducting pathways at low angle tilt boundaries

Y. Yan; J. E. Evetts; B. Soylu; W. M. Stobbs

doi:10.1016/0921-4534(96)00179-7

The origins of high values of the critical current density in the Bi₂Sr₂Ca_n-1Cu_nO_x system: High-T_c superconducting pathways at low angle tilt boundaries

Y. Yan, J. E. Evetts, B. Soylu, W. M. Stobbs

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

13 Scopus citations

Abstract

Low angle tilt boundaries in melt processed samples from the Bi₂Sr₂Ca_n-1Cu_nO_x system exhibit compositionally modulated faceting. Although we see local regions of the low-T_c (20 K) (2201) phase at such boundaries which would be highly resistive at liquid nitrogen temperatures, there are also "pathways" crossing the boundary plane made up of the high-T_c (2212) and (2223) phases. The characteristics of such low angle tilt grain boundary structures can therefore be modelled to provide a general insight into the correlation between high critical current densities and low texture breadths.

Original language	English
Pages (from-to)	56-64
Number of pages	9
Journal	Physica C: Superconductivity and its Applications
Volume	261
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(96)00179-7
State	Published - Apr 20 1996
Externally published	Yes

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10.1016/0921-4534(96)00179-7

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abstract = "Low angle tilt boundaries in melt processed samples from the Bi2Sr2Can-1CunOx system exhibit compositionally modulated faceting. Although we see local regions of the low-Tc (20 K) (2201) phase at such boundaries which would be highly resistive at liquid nitrogen temperatures, there are also {"}pathways{"} crossing the boundary plane made up of the high-Tc (2212) and (2223) phases. The characteristics of such low angle tilt grain boundary structures can therefore be modelled to provide a general insight into the correlation between high critical current densities and low texture breadths.",

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T2 - High-Tc superconducting pathways at low angle tilt boundaries

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AU - Soylu, B.

AU - Stobbs, W. M.

PY - 1996/4/20

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AB - Low angle tilt boundaries in melt processed samples from the Bi2Sr2Can-1CunOx system exhibit compositionally modulated faceting. Although we see local regions of the low-Tc (20 K) (2201) phase at such boundaries which would be highly resistive at liquid nitrogen temperatures, there are also "pathways" crossing the boundary plane made up of the high-Tc (2212) and (2223) phases. The characteristics of such low angle tilt grain boundary structures can therefore be modelled to provide a general insight into the correlation between high critical current densities and low texture breadths.

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ER -

The origins of high values of the critical current density in the Bi₂Sr₂Ca_n-1Cu_nO_x system: High-T_c superconducting pathways at low angle tilt boundaries

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