[13p-A405-1~17] 12.2 Characterization and Materials Physics

[13p-A405-10] Interpretation of hν-dependent low energy high-sensitivity photoemission spectrum (3): Difference between metallic and organic samples

〇Hisao Ishii^1,2,3, Shunsuke Kimata², Atsushi Matsuzaki², Ichiro Ide², Taichi Maruyama², Yuki Yamaguchi², Kohei Shimizu², Yuya Tanaka^1,2 (1.CFS Chiba Univ., 2.GSSE Chiba Univ., 3.MCRC Chiba Univ.)

Keywords:photoemission spectroscopy

We have developped hv dependent high-sensitivity UV photoemission spectroscopy to investigate the valence density of states of materials including weak gap states. In this method, the normalization of the intensities of many spectra for different hv is necessary.
In the last meeting, we demonstrated constant final state method, in which the intensity at the fixed final state is plotted as a funciton of hv, worked well for organic samples. But for gold film, the abnormal intensity decay was observed at the onset region. In this study, we will discuss the possible reason of such abnormal intensity for gold film.