Flux pinning by columnar defects in high-temperature superconducting crystals

M. Konczykowski; Y. Yeshurun; L. Klein; E. R. Yacoby; N. Chikumoto; V. M. Vinokur; M. V. Feigel'man

doi:10.1016/0925-8388(93)90766-g

Flux pinning by columnar defects in high-temperature superconducting crystals

M. Konczykowski, Y. Yeshurun, L. Klein, E. R. Yacoby, N. Chikumoto, V. M. Vinokur, M. V. Feigel'man

Department of Physics - at Bar-Ilan University

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

12 Scopus citations

Abstract

Y-Ba-Cu-O:123 and Bi-Sr-Ca-Cu-O:2212 crystals were irradiated with 5.8 GeV Pb ions. The columnar defects, produced by this irradiation are expected to yield the strongest possible pinning energy. Indeed, there is an apparent increase in the width of the magnetization curves. However, the results of magnetic relaxation experiments indicate the energy barrier for flux creep from the columnar defects much smaller than expected pinning energy. This effect is explained in terms of nucleation of vortex loop mechanism of flux creep. The estimate of pinning energy of columnar defect can be obtained from measurement of the angular dependence of the magnetization curves.

Original language	English
Pages (from-to)	407-410
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	195
Issue number	C
DOIs	https://doi.org/10.1016/0925-8388(93)90766-g
State	Published - 10 May 1993

Bibliographical note

Funding Information:
The authors thank Florence Rullier-Albenque and Serge Bouffard for help in irradiation. V.M.V. acknowledges support from Argonne National Laboratory through US Department of Energy, BES-Material Sciences under Contract #W-31-109-ENG-38, and through the NSF founded Science and Technology Center for Superconductivity under Grant No. DMR88-09854.The work in Israel is partially suppported by the Ministry of Science and Technolodgy.

Funding

The authors thank Florence Rullier-Albenque and Serge Bouffard for help in irradiation. V.M.V. acknowledges support from Argonne National Laboratory through US Department of Energy, BES-Material Sciences under Contract #W-31-109-ENG-38, and through the NSF founded Science and Technology Center for Superconductivity under Grant No. DMR88-09854.The work in Israel is partially suppported by the Ministry of Science and Technolodgy.

Funders	Funder number
BES-Material Sciences	-31-109-ENG-38
NSF founded Science and Technology Center for Superconductivity	DMR88-09854
U.S. Department of Energy
Argonne National Laboratory

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title = "Flux pinning by columnar defects in high-temperature superconducting crystals",

abstract = "Y-Ba-Cu-O:123 and Bi-Sr-Ca-Cu-O:2212 crystals were irradiated with 5.8 GeV Pb ions. The columnar defects, produced by this irradiation are expected to yield the strongest possible pinning energy. Indeed, there is an apparent increase in the width of the magnetization curves. However, the results of magnetic relaxation experiments indicate the energy barrier for flux creep from the columnar defects much smaller than expected pinning energy. This effect is explained in terms of nucleation of vortex loop mechanism of flux creep. The estimate of pinning energy of columnar defect can be obtained from measurement of the angular dependence of the magnetization curves.",

author = "M. Konczykowski and Y. Yeshurun and L. Klein and Yacoby, {E. R.} and N. Chikumoto and Vinokur, {V. M.} and Feigel'man, {M. V.}",

note = "Funding Information: The authors thank Florence Rullier-Albenque and Serge Bouffard for help in irradiation. V.M.V. acknowledges support from Argonne National Laboratory through US Department of Energy, BES-Material Sciences under Contract #W-31-109-ENG-38, and through the NSF founded Science and Technology Center for Superconductivity under Grant No. DMR88-09854.The work in Israel is partially suppported by the Ministry of Science and Technolodgy.",

year = "1993",

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doi = "10.1016/0925-8388(93)90766-g",

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AU - Konczykowski, M.

AU - Yeshurun, Y.

AU - Klein, L.

AU - Yacoby, E. R.

AU - Chikumoto, N.

AU - Vinokur, V. M.

AU - Feigel'man, M. V.

N1 - Funding Information: The authors thank Florence Rullier-Albenque and Serge Bouffard for help in irradiation. V.M.V. acknowledges support from Argonne National Laboratory through US Department of Energy, BES-Material Sciences under Contract #W-31-109-ENG-38, and through the NSF founded Science and Technology Center for Superconductivity under Grant No. DMR88-09854.The work in Israel is partially suppported by the Ministry of Science and Technolodgy.

PY - 1993/5/10

Y1 - 1993/5/10

N2 - Y-Ba-Cu-O:123 and Bi-Sr-Ca-Cu-O:2212 crystals were irradiated with 5.8 GeV Pb ions. The columnar defects, produced by this irradiation are expected to yield the strongest possible pinning energy. Indeed, there is an apparent increase in the width of the magnetization curves. However, the results of magnetic relaxation experiments indicate the energy barrier for flux creep from the columnar defects much smaller than expected pinning energy. This effect is explained in terms of nucleation of vortex loop mechanism of flux creep. The estimate of pinning energy of columnar defect can be obtained from measurement of the angular dependence of the magnetization curves.

AB - Y-Ba-Cu-O:123 and Bi-Sr-Ca-Cu-O:2212 crystals were irradiated with 5.8 GeV Pb ions. The columnar defects, produced by this irradiation are expected to yield the strongest possible pinning energy. Indeed, there is an apparent increase in the width of the magnetization curves. However, the results of magnetic relaxation experiments indicate the energy barrier for flux creep from the columnar defects much smaller than expected pinning energy. This effect is explained in terms of nucleation of vortex loop mechanism of flux creep. The estimate of pinning energy of columnar defect can be obtained from measurement of the angular dependence of the magnetization curves.

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Flux pinning by columnar defects in high-temperature superconducting crystals

Abstract

Bibliographical note

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