Neutron irradiation effect on magnetization and thermal conductivity of (Hgi.xBix)Ba2Ca2Cu3Oy superconductor

S. Nakamae; J. Crow; J. Schwartz

doi:10.1109/77.784930

Neutron irradiation effect on magnetization and thermal conductivity of (Hgi.xBix)Ba2Ca2Cu3Oy superconductor

S. Nakamae, J. Crow, J. Schwartz

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

Abstract

We have investigated the neutron irradiation effect on a phase-pure (Hgi-xBiJBazCajCujOy superconductor through magnetization and thermal conductivity measurements. It has been found that the inclusion of point-defects from the irradiation lowers the transition temperature and destroys the coupling between neighboring superconducting grains. Such point-defects act as strong flux pinning sites in the mixed state, resulting in the critical current density increase. The thermal conductivity data are used to study the scattering mechanisms between the heat carriers and the point defects in the absence and the presence of magnetic fields.

Original language	English (US)
Pages (from-to)	2300-2303
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	9
Issue number	2 PART 2
DOIs	https://doi.org/10.1109/77.784930
State	Published - 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "Neutron irradiation effect on magnetization and thermal conductivity of (Hgi.xBix)Ba2Ca2Cu3Oy superconductor",

abstract = "We have investigated the neutron irradiation effect on a phase-pure (Hgi-xBiJBazCajCujOy superconductor through magnetization and thermal conductivity measurements. It has been found that the inclusion of point-defects from the irradiation lowers the transition temperature and destroys the coupling between neighboring superconducting grains. Such point-defects act as strong flux pinning sites in the mixed state, resulting in the critical current density increase. The thermal conductivity data are used to study the scattering mechanisms between the heat carriers and the point defects in the absence and the presence of magnetic fields.",

author = "S. Nakamae and J. Crow and J. Schwartz",

note = "Funding Information: Manuscript received September 14, 1998. This work supported by National Science Foundation, through the National High Magnetic Field Laboratory under Award No. DMR-9527035andDMR-9526231",

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T1 - Neutron irradiation effect on magnetization and thermal conductivity of (Hgi.xBix)Ba2Ca2Cu3Oy superconductor

AU - Nakamae, S.

AU - Crow, J.

AU - Schwartz, J.

N1 - Funding Information: Manuscript received September 14, 1998. This work supported by National Science Foundation, through the National High Magnetic Field Laboratory under Award No. DMR-9527035andDMR-9526231

PY - 1999

Y1 - 1999

N2 - We have investigated the neutron irradiation effect on a phase-pure (Hgi-xBiJBazCajCujOy superconductor through magnetization and thermal conductivity measurements. It has been found that the inclusion of point-defects from the irradiation lowers the transition temperature and destroys the coupling between neighboring superconducting grains. Such point-defects act as strong flux pinning sites in the mixed state, resulting in the critical current density increase. The thermal conductivity data are used to study the scattering mechanisms between the heat carriers and the point defects in the absence and the presence of magnetic fields.

AB - We have investigated the neutron irradiation effect on a phase-pure (Hgi-xBiJBazCajCujOy superconductor through magnetization and thermal conductivity measurements. It has been found that the inclusion of point-defects from the irradiation lowers the transition temperature and destroys the coupling between neighboring superconducting grains. Such point-defects act as strong flux pinning sites in the mixed state, resulting in the critical current density increase. The thermal conductivity data are used to study the scattering mechanisms between the heat carriers and the point defects in the absence and the presence of magnetic fields.

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Neutron irradiation effect on magnetization and thermal conductivity of (Hgi.xBix)Ba2Ca2Cu3Oy superconductor

Abstract

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