Electronic and transport properties of the dense Pb/Si(100) reconstructions, 2$\times$1-Pb with 1.5 ML (monolayer) of Pb and c(4$\times$4)-Pb with $\sim$1.875 (15/8) ML of Pb, have been explored using angle-resolved photoelectron spectroscopy in conjunction with the DFT calculations and in situtransport and magnetotransport four-probe measurements at low temperatures. Both reconstructions are the low-dimensional materials with the advanced properties. In particular, the Pb/Si(100)2$\times$1 shows up as a quasi-one-dimensional metallic phase with an extremely great spin splitting of the metallic surface-state band as revealed by the DFT calculations. The Pb/Si(100)c(4$\times$4) has been found to demonstrate fingerprints of a superconductor with a critical temperature of 1.03 K. At low temperatures, the reconstructions display quantum phenomena relevant to their low-dimensional nature, e.g., metal-insulator transition for the Pb/Si(100)2$\times$1 and magnetic-field-induced superconductor-insulator transition for the Pb/Si(100)c(4$\times$4).

致密Pb / Si（100）重建物的电子和输运性质，2$\times$1-Pb与1.5 ML（单层）的Pb和c（4$\times$4）-铅 $〜$使用角度分辨光电子能谱结合DFT计算以及低温下的原位传输和磁传输四探针测量，已经探索了1.875（15/8）ML的Pb 。两种重建都是具有先进特性的低维材料。特别是Pb / Si（100）2$\times$图1显示为准一维金属相，通过DFT计算可知，金属表面状态带具有极大的自旋分裂。铅/硅（100）c（4$\times$4）已发现可显示临界温度为1.03 K的超导体的指纹。在低温下，该重建物显示与其低维性质有关的量子现象，例如Pb / Si（100）的金属-绝缘体跃迁2$\times$1和Pb / Si（100）c（4）的磁场感应超导体-绝缘体跃迁$\times$4）。