[25a-E304-1~9] 12.2 Characterization and Materials Physics

[25a-E304-3] Electronic structure and molecular arrangement of molecule-based honeycomb lattice using triptycene derivative Trip-Phz with C₃ symmetry

〇(B)Ryota Sema¹, Saki Yamauchi¹, Ryo Ushiroguchi¹, Ryohei Nemoto², Takashi Uchihashi², Keisuke Fukutani³, Satoshi Kera³, Rie Suizu^1,4, Kunio Awaga¹ (1.Nagoya Univ., 2.NIMS, 3.IMS, 4.JST PRESTO)

Keywords:triptycene derivative, scanning tunneling microscope, photoemission spectroscopy

A triptycene derivative with C₃ symmetry, Trip-Phz, deposited on a cleaned Ag(111) substrate, was observed by scanning tunneling microscopy and was found to form a honeycomb lattice. Band calculations based on this structure revealed the presence of flat bands accompanied by Dirac cones. The results of gas phase photoemission spectroscopy and photoemission spectroscopy of a bulk will be also discussed.