The highly doped region of the T-p phase diagram of the high temperature superconducting cuprates, has been, somewhat surprisingly, less explored than the rest of it. Here, we present a fresh look into the superconducting properties of Mo_0.3Cu_0.7Sr₂YCu₂O_7+δ, with different oxygen contents. These have been attained by two different oxidation techniques and results in samples with a very high hole doping levels in the CuO₂ superconducting planes, placing these materials in a greatly doped regime. The evolution of the critical temperature (T_C) with p, reflects the displacement of the superconducting region towards much higher doping levels in comparison with conventional cuprates. Moreover, the normal state transport properties are also displaced, but not in the same extension as the superconducting region, resulting in a different superconducting to normal state correspondence in this Mo_0.3Cu_0.7Sr₂YCu₂O_7+δ system.

令人惊讶的是，高温超导铜酸盐的T- p相图的高掺杂区的探索程度低于其余部分。在这里，我们对具有不同氧含量的Mo _0.3 Cu _0.7 Sr ₂ YCu ₂ O _{7 +δ}的超导性质进行了重新研究。这些已通过两种不同的氧化技术获得，并导致样品在CuO ₂超导平面中具有很高的空穴掺杂水平，从而使这些材料处于高度掺杂的状态。临界温度（T _C）的演变）的p反映了与常规铜酸盐相比，超导区域向更高掺杂水平的位移。此外，正常态的传输特性也发生位移，但不具有与超导区域相同的延伸范围，从而导致在此Mo _0.3 Cu _0.7 Sr ₂ YCu ₂ O _{7 +δ}系统中不同的超导至正常态对应关系。