Role of Silver on Superconducting Properties of BPSCCO (2223) System

Muralidhar Miryala; K. Nanda Kishore; M. Nagabhushanam; G. Swaminathan; V. Hari Babu

doi:10.1002/crat.2170280515

Role of Silver on Superconducting Properties of BPSCCO (2223) System

Muralidhar Miryala, K. Nanda Kishore, M. Nagabhushanam, G. Swaminathan, V. Hari Babu

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Abstract

The role of silver for the superconducting properties of the BiPbSrCaCuO (2223) system have been investigated systematically. Samples with various concentrations of Ag were prepared by the matrix method. D.C. resistance results showed that T_c(0) varied between 100–109 K for various compositions of Ag. J_c measured at LNT from I–V data shows an increase with silver addition. J_c decreased from 90 Amp/cm² at zero field to 16 Amp/cm² at 100 Oe. The T_c(0) obtained form the susceptibility data agreed with those obtained from resistance measurements. X‐ray diffraction results showed that the dominant phase in BPSCCO is the high‐temperature (2223) phase and the same is improved in silver added BPSCCO samples. The scanning electron micrographs indicated that silver is precipated along the grain boundaries, separating the superconducting grains. These results have showed that silver addition does not destroy the superconductivity and at the same time enhances the critical current density.

Original language	English
Pages (from-to)	653-663
Number of pages	11
Journal	Crystal Research and Technology
Volume	28
Issue number	5
DOIs	https://doi.org/10.1002/crat.2170280515
Publication status	Published - 1993
Externally published	Yes

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ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Cite this

Miryala, M., Kishore, K. N., Nagabhushanam, M., Swaminathan, G., & Babu, V. H. (1993). Role of Silver on Superconducting Properties of BPSCCO (2223) System. Crystal Research and Technology, 28(5), 653-663. https://doi.org/10.1002/crat.2170280515

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title = "Role of Silver on Superconducting Properties of BPSCCO (2223) System",

abstract = "The role of silver for the superconducting properties of the BiPbSrCaCuO (2223) system have been investigated systematically. Samples with various concentrations of Ag were prepared by the matrix method. D.C. resistance results showed that Tc(0) varied between 100–109 K for various compositions of Ag. Jc measured at LNT from I–V data shows an increase with silver addition. Jc decreased from 90 Amp/cm2 at zero field to 16 Amp/cm2 at 100 Oe. The Tc(0) obtained form the susceptibility data agreed with those obtained from resistance measurements. X‐ray diffraction results showed that the dominant phase in BPSCCO is the high‐temperature (2223) phase and the same is improved in silver added BPSCCO samples. The scanning electron micrographs indicated that silver is precipated along the grain boundaries, separating the superconducting grains. These results have showed that silver addition does not destroy the superconductivity and at the same time enhances the critical current density.",

author = "Muralidhar Miryala and Kishore, {K. Nanda} and M. Nagabhushanam and G. Swaminathan and Babu, {V. Hari}",

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AU - Miryala, Muralidhar

AU - Kishore, K. Nanda

AU - Nagabhushanam, M.

AU - Swaminathan, G.

AU - Babu, V. Hari

PY - 1993

Y1 - 1993

N2 - The role of silver for the superconducting properties of the BiPbSrCaCuO (2223) system have been investigated systematically. Samples with various concentrations of Ag were prepared by the matrix method. D.C. resistance results showed that Tc(0) varied between 100–109 K for various compositions of Ag. Jc measured at LNT from I–V data shows an increase with silver addition. Jc decreased from 90 Amp/cm2 at zero field to 16 Amp/cm2 at 100 Oe. The Tc(0) obtained form the susceptibility data agreed with those obtained from resistance measurements. X‐ray diffraction results showed that the dominant phase in BPSCCO is the high‐temperature (2223) phase and the same is improved in silver added BPSCCO samples. The scanning electron micrographs indicated that silver is precipated along the grain boundaries, separating the superconducting grains. These results have showed that silver addition does not destroy the superconductivity and at the same time enhances the critical current density.

AB - The role of silver for the superconducting properties of the BiPbSrCaCuO (2223) system have been investigated systematically. Samples with various concentrations of Ag were prepared by the matrix method. D.C. resistance results showed that Tc(0) varied between 100–109 K for various compositions of Ag. Jc measured at LNT from I–V data shows an increase with silver addition. Jc decreased from 90 Amp/cm2 at zero field to 16 Amp/cm2 at 100 Oe. The Tc(0) obtained form the susceptibility data agreed with those obtained from resistance measurements. X‐ray diffraction results showed that the dominant phase in BPSCCO is the high‐temperature (2223) phase and the same is improved in silver added BPSCCO samples. The scanning electron micrographs indicated that silver is precipated along the grain boundaries, separating the superconducting grains. These results have showed that silver addition does not destroy the superconductivity and at the same time enhances the critical current density.

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10.1002/crat.2170280515