Presentation Information
[8p-N404-16]Synthesis and Superconducting Behavior of FeSe Intercalated by an Ionic Molecular Tripod with Two-Dimensional Assembly Properties
〇Ryota Yoshie1,2, Keita Mori2,3, Takayoshi Katase2,3, Yoshiaki Shoji1,2,4, Takanori Fukushima1,2,4 (1.CLS, Science Tokyo, 2.Sch. Mater. and Chem. Tech., Science Tokyo, 3.MDX ES, Science Tokyo, 4.ASMat, Science Tokyo)
Keywords:
Iron-based superconductor,Intercalation compound,Triptycene tripod
The 11-type iron-based superconductor, FeSe, with Tc of only 8 K has a stacking structure of FeSe4 tetrahedra layers. FeSe-based organic molecule intercalation compounds have high Tc of ~40 K due to elongation of the layer distance. On the other hand, the interaction between the organic intercalators and the FeSe layers, and its effect on the superconducting properties, is still unclear. Using a molecule with high self-assembly properties as an intercalator in FeSe-based intercalation compounds may reveal structural property correlations in the superconducting properties through the formation of highly structurally ordered organic layers. In this study, we have attempted to intercalate FeSe using tripodal triptycenes, which are propeller-shaped molecules with two-dimensional assembly properties, and investigated their structures and superconducting properties.