Nanostructures in high-temperature superconductors

Jan Alexander Jung; H. Yan; H. Darhmaoui; M. Abdelhadi; B. Boyce; J. Skinta; Thomas R. Lemberger; Wai K. Kwok

doi:10.1117/12.397852

6 September 2000 Nanostructures in high-temperature superconductors

Jan Alexander Jung, H. Yan, H. Darhmaoui, M. Abdelhadi, B. Boyce, J. Skinta, Thomas R. Lemberger, Wai K. Kwok

Proceedings Volume 4058, Superconducting and Related Oxides: Physics and Nanoengineering IV; (2000) https://doi.org/10.1117/12.397852
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

Correlation between the nanoscopic disorder in the nanostructures in the a-b planes of high T_c 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 J_c(T), the superfluid density n_s(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 U_eff(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.

Citation Download Citation

Jan Alexander Jung, H. Yan, H. Darhmaoui, M. Abdelhadi, B. Boyce, J. Skinta, Thomas R. Lemberger, and Wai K. Kwok "Nanostructures in high-temperature superconductors", Proc. SPIE 4058, Superconducting and Related Oxides: Physics and Nanoengineering IV, (6 September 2000); https://doi.org/10.1117/12.397852

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