[2] [2] ZHAO S H, TIAN W H, LIANG X L, et al. Transport properties of Tl2Ba2CaCu2O8 microbridges on a low-angle step substrate［J］. Chinese Physics B, 2021, 30(6): 060308.

[3] [3] LIANG X L, NIU Z H, LI T C, et al. Controllable growth and magneto-resistivity investigations on Tl-1223 superconducting films with high Tc［J］. Ceramics International, 2023, 49(5): 8240-8247.

[7] [7] AWAD R, ABOU-ALY A I, ISBER S, et al. Effect of the partial replacement of Ca by alkaline element Na on Tl-1223 superconductor［J］. Journal of Physics: Conference Series, 2006, 43: 474-479.

[8] [8] RANJBAR M G, ABD-SHUKOR R. Formation of Tl-1223 phase in Cr substituted (Tl1-xCrx)Ba2Ca2Cu3O9-δ (x=0.3 to 0.9) superconductor［J］. Ceramics International, 2014, 40(9): 13869-13872.

[9] [9] TNIES S, WEBER H W, GRITZNER G, et al. Critical Currents in uranium doped Tl-1223 superconductors［J］. Physica C: Superconductivity, 2002, 372/373/374/375/376: 755-758.

[13] [13] JIANG Y L, YUE H W, WEI J Z, et al. Effects of post-annealing in different gas atmospheres on the properties of Tl-2212 films fabricated by Sol-gel method［J］. IOP Conference Series: Earth and Environmental Science, 2021, 772(1): 012078.

[16] [16] CHEN M X, ZHAO X J, JIANG Y L, et al. The growth of (00l)-oriented CeO2 buffer layers on R-cut sapphire substrates for the epitaxy of Tl-2212 superconducting films［J］. Key Engineering Materials, 2018, 773: 162-167.

[18] [18] CHEANG-WONG J C, JERGEL M, ANDRADE E, et al. Correlation between the Tl concentration depth profiles and the thallination time in Tl-Ba-Ca-Cu-O superconducting films［J］. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1998, 136/137/138: 1300-1305.

[19] [19] HASSAN B, ALNAKHLANI A, ABDULHAFIZ M. Effects of Tl content and magnetic field on phase formation of TlmBa2Can-1CunO2n+2+δ (m=1 and 2, n=4) superconductors［J］. Physica C: Superconductivity and Its Applications, 2021, 586: 1353874.

[20] [20] DUAN T F, HAO J H, CHU H F, et al. Existence of carbonate clusters and its relationship with critical temperature in superconducting (Cu, C)Ba2Ca3Cu4Oy films［J］. Physica C: Superconductivity and Its Applications, 2020, 573: 1353646.