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Proceedings Paper

Nanostructures in high-temperature superconductors
Author(s): Jan Alexander Jung; H. Yan; H. Darhmaoui; M. Abdelhadi; B. Boyce; J. Skinta; Thomas R. Lemberger; Wai K. Kwok
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Paper Abstract

Correlation between the nanoscopic disorder in the nanostructures in the a-b planes of high Tc superconductors and the macroscopic properties has been studied. It has been found that nanostructures govern the temperature dependence of the transport and magnetic properties such as: the critical current density Jc(T), the superfluid density ns(T)varies direct as1/(lambda) ab2(T) and the normalized magnetic relaxation rate S(T). They also determine magnetic flux pinning: the dependence of the energy barrier on the current density Ueff(J). Irradiation with heavy ions affects the above properties through the change of the disorder in the nanostructure array. The studies have been performed on YBCO and TlBCCO thin films.

Paper Details

Date Published: 6 September 2000
PDF: 13 pages
Proc. SPIE 4058, Superconducting and Related Oxides: Physics and Nanoengineering IV, (6 September 2000); doi: 10.1117/12.397852
Show Author Affiliations
Jan Alexander Jung, Univ. of Alberta (Canada)
H. Yan, Univ. of Alberta (Canada)
H. Darhmaoui, Univ. of Alberta (Canada)
M. Abdelhadi, Univ. of Alberta (Canada)
B. Boyce, The Ohio State Univ. (United States)
J. Skinta, The Ohio State Univ. (United States)
Thomas R. Lemberger, The Ohio State Univ. (United States)
Wai K. Kwok, Argonne National Lab. (United States)


Published in SPIE Proceedings Vol. 4058:
Superconducting and Related Oxides: Physics and Nanoengineering IV
Davor Pavuna; Ivan Bozovic, Editor(s)

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