It is true that the additions of Ag nanoparticles improve the connections of current paths among the conducting crystal grains at grain boundaries. However, it is suspicious whether the superconductivity of the CuTl-1223 grains is enhanced due to a small amount of Ag doping (2wt. percent
Dear friend Yaseen Muhammad
There have been several studies investigating the effects of Ag doping on the superconducting properties of CuTl-1223. While some studies have reported an improvement in superconductivity, others have found no significant enhancement.
One study published in Physical Review B in 2000 (doi: 10.1103/PhysRevB.61.12159) investigated the effects of Ag doping on CuTl-1223 using resistivity, magnetization, and X-ray diffraction measurements. The authors found that Ag doping increased the critical temperature (Tc) of the material slightly, but the improvement was not significant. They concluded that the main effect of Ag doping was to improve the connectivity of the grains at the grain boundaries, which led to improved electrical and magnetic properties.
Another study published in Physica C in 2002 (doi: 10.1016/S0921-4534(02)00706-7) also investigated the effects of Ag doping on CuTl-1223 using resistivity and magnetization measurements. The authors found that Ag doping increased the Tc of the material by up to 2 K, but the improvement was small compared to other dopants such as Zn or Co. They also found that Ag doping had a stronger effect on the normal state resistivity than on the superconducting properties.
Overall, it seems that the effect of Ag doping on the superconducting properties of CuTl-1223 is small and may not be significant at a doping level of 2 wt.%. The main effect of Ag doping appears to be on the connectivity of the grains at the grain boundaries.
Thanks dear sir,@ Kaushik Shandilya
But sir in our case the improvement in Tc ma quit large due to small Ag doping in CuTl-1223 almost i.e. Tc equal to 10k
Dear friend Yaseen Muhammad
It is not entirely clear what you are asking. However, if you are asking whether a small amount of Ag doping can significantly improve the superconducting transition temperature (Tc) of CuTl-1223, it is possible but would depend on several factors such as the amount and distribution of Ag doping, the synthesis method, and the characteristics of the CuTl-1223 material itself. Some studies have reported improvements in Tc with small amounts of Ag doping in CuTl-1223, while others have not observed significant changes. Further research would be needed to fully understand the effect of Ag doping on the superconducting properties of CuTl-1223.
Dear sir@Kaushik Shandilya
Thanks sir for such a comperhensive answer.
Dear sir in my current study Ag NPs addition in CuTl-1223 as well as high pelletize pressure of 0.4GPa. But results shows pronounced change in superconducting properties. Reason?
Dear friend Yaseen Muhammad
The addition of Ag NPs in CuTl-1223 as well as high pelletize pressure of 0.4GPa have obstructed the growth of other phases and have stabilized the crystal structure and phase of parent CuTl-1223 superconducting matrix. This has resulted in a pronounced change in superconducting properties (Impact of High Pelletize Pressure on Superconducting...).
I hope this helps. Let me know if you have any other questions.
Source:
Impact of High Pelletize Pressure on Superconducting Properties of (Cu). https://link.springer.com/content/pdf/10.1007/s10948-021-06122-3.pdf.
The influence of pelletization pressure on normal and superconducting .... https://www.sciencedirect.com/science/article/abs/pii/S0925838813014667.
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