High pressure electric transport and synchrotron x-ray diffraction (XRD) measurements together with the first-principles calculations are performed on a shandite compound Pd₃Pb₂Se₂ which contains the Kagome lattice of the transition metal Pd. A pressure-induced superconducting transition is observed above 25GPa, for the first time in the shandite compounds, although the crystal structure of the compound seems to be very robust and persists up to the highest pressure in the XRD study (76.3GPa). The superconducting transition temperature is about 2.2K and almost does not change with pressure. The carrier density suddenly increases around 20GPa possibly due to the emergence of two electron pockets at the Γ point. Our work indicates that the superconductivity in Pd₃Pb₂Se₂ is strongly correlated to its electronic structure.

对闪锌矿化合物Pd ₃ Pb ₂ Se ₂进行高压电传输和同步辐射X射线衍射（XRD）测量以及第一原理计算它包含过渡金属Pd的Kagome晶格。在镁橄榄石化合物中，首次在25GPa以上观察到压力诱导的超导转变，尽管该化合物的晶体结构似乎非常坚固，并且在XRD研究中一直保持到最高压力（76.3GPa）。超导转变温度约为2.2K，几乎不会随压力变化。载流子密度突然增加到20GPa左右，这可能是由于在Γ点出现了两个电子腔。我们的工作表明，Pd ₃ Pb ₂ Se ₂中的超导性与其电子结构密切相关。