Polycrystalline superconducting samples of Bi_2-xSm_xSr₂CaCu₂O_8+δ were synthesized using Pechini method with different doping Sm concentrations (x = 0.0, 0.05, and 0.10) and investigated. FTIR spectroscopy showed that our final samples are totally free of organic elements. Le Bail refinement revealed that they were crystallized in the Bi-2212 phase. A small amount of the omnipresent Bi-2201 phase appeared as an impurity phase in all samples, whereas a small amount of Bi-2223 appeared only in the case of x = 0.5. In one hand, the Sm doping decreases the cell parameters, and in other hand, it leads to a transformation into a pseudo-tetragonal structure in the case of x = 0.10.The modulation was found to be incommensurate and increases with Sm content. The magneto-electrical resistivity curves show a transition to the superconductor state. The critical temperature T_C decreases with the Sm doping, whereas the activation energy U₀ increased from 53.4 meV to 68.9 meV.

使用Pechini方法合成了具有不同掺杂Sm浓度（x  = 0.0、0.05和0.10）的Bi _2-x Sm _x Sr ₂ CaCu ₂ O _{8 +δ}多晶超导样品，并进行了研究。FTIR光谱表明，我们的最终样品完全不含有机元素。Le Bail精制显示它们在Bi-2212相中结晶。在所有样品中，少量的无处不在的Bi-2201相作为杂质相出现，而仅在x的情况下出现少量的Bi-2223相。 = 0.5。一方面，Sm掺杂会降低晶胞参数，另一方面，在x  = 0.10的情况下，它会导致转变为准四边形结构，发现调制是不相称的，并且随着Sm含量的增加而增加。磁电阻率曲线显示出过渡到超导体状态。临界温度T _C随着Sm掺杂而降低，而活化能U ₀从53.4 meV增加到68.9 meV。