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Flux Pinning with Addition of Gold Nanoparticles in CuTl-1223 Superconductor

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Abstract

We investigated the effects of gold (Au) nanoparticles on flux pinning in Cu0.5Tl0.5Ba2Ca2Cu3O10−δ (CuTl-1223) superconductor by infield temperature-dependent dc-resistivity measurements. The values of \(\phantom {\dot {i}\!}T_{\mathrm {c}}^{\text {onset}}\) (K) remained almost unaffected by applying external magnetic field on (Au) x /CuTl-1223; (x = 0∼1.5 wt.%) composites samples. But a decreasing trend in T c(0) and increasing trend in resistive broadening (ΔT) by increasing external applied magnetic field were reduced after addition of Au nanoparticles in CuTl-1223 superconducting matrix. The activation energy (U o) was calculated according to thermally activated flux flow (TAFF) model by using the Arrhenius Law. The increase in T c(0), U o, and upper critical field (H c2) indicates a strong flux pinning after the inclusion of Au nanoparticles and found optimum for x = 1.0 wt.%.

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Authors and Affiliations

  1. Materials Research Laboratory, Department of Physics FBAS, International Islamic University (IIU), Islamabad, 44000, Pakistan

    Liaqat Ali, M. Mumtaz & M. W. Rabbani

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  1. Liaqat Ali
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  2. M. Mumtaz
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  3. M. W. Rabbani
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Correspondence to M. Mumtaz.

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Ali, L., Mumtaz, M. & Rabbani, M.W. Flux Pinning with Addition of Gold Nanoparticles in CuTl-1223 Superconductor. J Supercond Nov Magn 30, 325–329 (2017). https://doi.org/10.1007/s10948-016-3724-7

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  • DOI: https://doi.org/10.1007/s10948-016-3724-7

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