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