Enhanced flux pinning in Bi2Sr2CaCu2O8+x superconductor with embedded carbon nanotubes

Kristian Fossheim; Ellen D. Tuset; Thomas W. Ebbesen; Michael M.J. Treacy; Justin Schwartz

doi:10.1016/0921-4534(95)00382-7

Enhanced flux pinning in Bi₂Sr₂CaCu₂O_8+x superconductor with embedded carbon nanotubes

Kristian Fossheim, Ellen D. Tuset, Thomas W. Ebbesen, Michael M.J. Treacy, Justin Schwartz

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Abstract

This paper describes a new approach towards enhanced flux pinning in high-temperature superconductors, and with a potential for scale-up to bulk application. It is shown that carbon nanotubes can be embedded in Bi₂Sr₂CaCu₂O_8+x superconductor, thus displacing the superconducting material from a cylindrical volume suitable for strong pinning of vortex lines along its length. The best-case superconductor-nanotube composite thus prepared was found to surpass the pure ceramic superconducting matrix in terms of pinning properties. Although optimum conditions were yet not reached the intragrain critical current density was estimated to have been increased by about one order of magnitude.

Original language	English (US)
Pages (from-to)	195-202
Number of pages	8
Journal	Physica C: Superconductivity and its applications
Volume	248
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(95)00382-7
State	Published - Jun 20 1995

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "Enhanced flux pinning in Bi2Sr2CaCu2O8+x superconductor with embedded carbon nanotubes",

abstract = "This paper describes a new approach towards enhanced flux pinning in high-temperature superconductors, and with a potential for scale-up to bulk application. It is shown that carbon nanotubes can be embedded in Bi2Sr2CaCu2O8+x superconductor, thus displacing the superconducting material from a cylindrical volume suitable for strong pinning of vortex lines along its length. The best-case superconductor-nanotube composite thus prepared was found to surpass the pure ceramic superconducting matrix in terms of pinning properties. Although optimum conditions were yet not reached the intragrain critical current density was estimated to have been increased by about one order of magnitude.",

author = "Kristian Fossheim and Tuset, {Ellen D.} and Ebbesen, {Thomas W.} and Treacy, {Michael M.J.} and Justin Schwartz",

note = "Funding Information: With the exception of the research carried out at NEC, this work was supported by The Norwegian Research Council under project no 100277/410, and by The National Science Foundation through the National High Magnetic Field Laboratory (NHMFL). KF would like to express his special appreciation to Hans Schneider-Muntau, Deputy Director of NHMFL, for the invitation and encouragement to go ahead with an exotic idea, and for having offered some of his students to join him here, one of whom (EDT) assisted in this project. Several members of the NHMFL Magnet Development Group provided useful support and advice: Yang Ren Sun, Jrrg Kessler, Christian Wolters; and PIil Tuset (also a visiting member of the Trondheim group). One of us (TWE) would like to thank H. Hiura (NEC Tsukuba) and M.E. Bisher (NEC Princeton) for their assistance.",

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doi = "10.1016/0921-4534(95)00382-7",

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T1 - Enhanced flux pinning in Bi2Sr2CaCu2O8+x superconductor with embedded carbon nanotubes

AU - Fossheim, Kristian

AU - Tuset, Ellen D.

AU - Ebbesen, Thomas W.

AU - Treacy, Michael M.J.

AU - Schwartz, Justin

N1 - Funding Information: With the exception of the research carried out at NEC, this work was supported by The Norwegian Research Council under project no 100277/410, and by The National Science Foundation through the National High Magnetic Field Laboratory (NHMFL). KF would like to express his special appreciation to Hans Schneider-Muntau, Deputy Director of NHMFL, for the invitation and encouragement to go ahead with an exotic idea, and for having offered some of his students to join him here, one of whom (EDT) assisted in this project. Several members of the NHMFL Magnet Development Group provided useful support and advice: Yang Ren Sun, Jrrg Kessler, Christian Wolters; and PIil Tuset (also a visiting member of the Trondheim group). One of us (TWE) would like to thank H. Hiura (NEC Tsukuba) and M.E. Bisher (NEC Princeton) for their assistance.

PY - 1995/6/20

Y1 - 1995/6/20

N2 - This paper describes a new approach towards enhanced flux pinning in high-temperature superconductors, and with a potential for scale-up to bulk application. It is shown that carbon nanotubes can be embedded in Bi2Sr2CaCu2O8+x superconductor, thus displacing the superconducting material from a cylindrical volume suitable for strong pinning of vortex lines along its length. The best-case superconductor-nanotube composite thus prepared was found to surpass the pure ceramic superconducting matrix in terms of pinning properties. Although optimum conditions were yet not reached the intragrain critical current density was estimated to have been increased by about one order of magnitude.

AB - This paper describes a new approach towards enhanced flux pinning in high-temperature superconductors, and with a potential for scale-up to bulk application. It is shown that carbon nanotubes can be embedded in Bi2Sr2CaCu2O8+x superconductor, thus displacing the superconducting material from a cylindrical volume suitable for strong pinning of vortex lines along its length. The best-case superconductor-nanotube composite thus prepared was found to surpass the pure ceramic superconducting matrix in terms of pinning properties. Although optimum conditions were yet not reached the intragrain critical current density was estimated to have been increased by about one order of magnitude.

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Enhanced flux pinning in Bi₂Sr₂CaCu₂O_8+x superconductor with embedded carbon nanotubes

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