在铁掺杂的Ｔｌ１２２３相中，铁对超导电性有明显的破坏作用，霍尔系数测量、热重分析和穆斯堡尔谱表明占据铜晶位的铁杂质原子不仅直接破坏ＣｕＯ２面的完整性而使超导转变温度降低，更重要的是铁的掺入诱导了额外氧原子进入晶格，形成了对载流子的强局域束缚作用，致使载流子浓度随铁掺杂量呈线性下降．额外氧导致了与其近邻的铁和铜原子产生了偏离ＣｕＯ２平面的位移，从而形成新的铁氧配位．针对额外氧缺陷精细结构的讨论，对研究额外氧和阳离子在ＣｕＯ２平面上的无序排列对载流子的局域束缚效应有重要意义 In the iron-doped Tl1223 phase, iron has a significant detrimental effect on the superconductivity. The Hall-coefficient measurement, TGA and Mossbauer spectroscopy show that the iron impurity atoms occupying the copper sites not only directly destroy the CuO 2 surface Of the integrity of the superconducting transition temperature is reduced, more importantly, the incorporation of iron induced additional oxygen atoms into the lattice, forming a strong local binding effect on carriers, resulting in carrier concentration with the iron doping The amount decreased linearly. The extra oxygen causes displacement of the iron and copper atoms adjacent to it from the plane of the CuO2 plane, resulting in the formation of a new ferrous oxygen complex. In the discussion of the fine structure of extra oxygen defects, it is of great significance to study the local restraint effect of carriers on the unordered arrangement of extra oxygen and cations in the CuO2 plane