Influence of randomly oriented columnar defects on the irreversible and reversible magnetization of Tl2Ba2CaCu2Ox superconductor

J. G. Ossandon; J. R. Thompson; L. Krusin-Elbaum; H. J. Kim; D. K. Christen; K. J. Song; J. L. Ullmann

doi:10.1088/0953-2048/14/9/306

Influence of randomly oriented columnar defects on the irreversible and reversible magnetization of Tl₂Ba₂CaCu₂O_x superconductor

J. G. Ossandon^*
, J. R. Thompson
, L. Krusin-Elbaum
, H. J. Kim
, D. K. Christen
, K. J. Song
, J. L. Ullmann

^*Corresponding author for this work

Physics Education

Universidad de Talca
Oak Ridge National Laboratory
University of Tennessee
IBM
Los Alamos National Laboratory

Research output: Contribution to journal › Journal article › peer-review

8 Scopus citations

Abstract

Bulk polycrystalline Tl₂Ba₂CaCu₂O_x materials were irradiated with 0.8 GeV protons to introduce randomly oriented columnar defects. Proton fluences up to 8.7 × 10²⁰ m^-2 were used to create defect arrays corresponding to a 'matching field' of 1.5 T. Studies were conducted on the superconductive transition temperature, the Meissner fraction, the intragrain persistent current density against the magnetic field and temperature, and the equilibrium magnetization. The magnetization was modelled using London theory with the addition of vortex-defect interactions, yielding physically reasonable parameters.

Original language	English
Pages (from-to)	666-671
Number of pages	6
Journal	Superconductor Science and Technology
Volume	14
Issue number	9
DOIs	https://doi.org/10.1088/0953-2048/14/9/306
State	Published - 2001.09

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@article{f1c32785e64149319fe6575fe3746967,

title = "Influence of randomly oriented columnar defects on the irreversible and reversible magnetization of Tl2Ba2CaCu2Ox superconductor",

abstract = "Bulk polycrystalline Tl2Ba2CaCu2Ox materials were irradiated with 0.8 GeV protons to introduce randomly oriented columnar defects. Proton fluences up to 8.7 × 1020 m-2 were used to create defect arrays corresponding to a 'matching field' of 1.5 T. Studies were conducted on the superconductive transition temperature, the Meissner fraction, the intragrain persistent current density against the magnetic field and temperature, and the equilibrium magnetization. The magnetization was modelled using London theory with the addition of vortex-defect interactions, yielding physically reasonable parameters.",

author = "Ossandon, \{J. G.\} and Thompson, \{J. R.\} and L. Krusin-Elbaum and Kim, \{H. J.\} and Christen, \{D. K.\} and Song, \{K. J.\} and Ullmann, \{J. L.\}",

year = "2001",

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doi = "10.1088/0953-2048/14/9/306",

language = "English",

volume = "14",

pages = "666--671",

journal = "Superconductor Science and Technology",

issn = "0953-2048",

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TY - JOUR

T1 - Influence of randomly oriented columnar defects on the irreversible and reversible magnetization of Tl2Ba2CaCu2Ox superconductor

AU - Ossandon, J. G.

AU - Thompson, J. R.

AU - Krusin-Elbaum, L.

AU - Kim, H. J.

AU - Christen, D. K.

AU - Song, K. J.

AU - Ullmann, J. L.

PY - 2001/9

Y1 - 2001/9

N2 - Bulk polycrystalline Tl2Ba2CaCu2Ox materials were irradiated with 0.8 GeV protons to introduce randomly oriented columnar defects. Proton fluences up to 8.7 × 1020 m-2 were used to create defect arrays corresponding to a 'matching field' of 1.5 T. Studies were conducted on the superconductive transition temperature, the Meissner fraction, the intragrain persistent current density against the magnetic field and temperature, and the equilibrium magnetization. The magnetization was modelled using London theory with the addition of vortex-defect interactions, yielding physically reasonable parameters.

AB - Bulk polycrystalline Tl2Ba2CaCu2Ox materials were irradiated with 0.8 GeV protons to introduce randomly oriented columnar defects. Proton fluences up to 8.7 × 1020 m-2 were used to create defect arrays corresponding to a 'matching field' of 1.5 T. Studies were conducted on the superconductive transition temperature, the Meissner fraction, the intragrain persistent current density against the magnetic field and temperature, and the equilibrium magnetization. The magnetization was modelled using London theory with the addition of vortex-defect interactions, yielding physically reasonable parameters.

UR - https://www.scopus.com/pages/publications/0035445434

U2 - 10.1088/0953-2048/14/9/306

DO - 10.1088/0953-2048/14/9/306

M3 - Journal article

AN - SCOPUS:0035445434

SN - 0953-2048

VL - 14

SP - 666

EP - 671

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 9

ER -

Influence of randomly oriented columnar defects on the irreversible and reversible magnetization of Tl₂Ba₂CaCu₂O_x superconductor

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