Investigation of superconducting mechanism for picene superconductor

本文研究了碱金属掺杂的三苯系超导体的物理性质。对于具有不同超导转变温度（Tc）的K掺杂的六方茂超导体，我们观察到了不同的晶格参数沿着c轴，以及不同的压力对Tc的影响。电阻率实验表明，超导转变和零电阻率低于Tc，这表明体超导电性。对分子内电子-声子相互作用的计算表明，该超导电性可以用声子介导机制来解释。

We studied physical properties on Alkali-metal doped picene superconductor. For the K-doped picene superconductors with the different superconducting transition temperatures (Tcs), we observed the different lattice parameters along the c-axis, and the different pressure effects on the Tc. The electric resistivity experiments showed the superconducting transition and the zero-resistivity below Tc, which indicated the bulk superconductivity. The calculation of the intra-molecular electron-phonon interaction indicated that the superconductivity for the picene should be explained by the framework of the phonon mediated mechanism.