[19a-A202-1~9] 17.3 Layered materials

9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[19a-A202-2] In-situ Raman spectroscopy of germanene growth process on Ag thin film

〇Tomoo Terasawa^1,2, Seiya Suzuki¹, Daiki Katsube³, Masahiro Yano¹, Yasutaka Tsuda¹, Akitaka Yoshigoe¹, Hidehito Asaoka¹ (1.JAEA, 2.IIS, Univ. of Tokyo, 3.RIKEN)

Keywords:

germanene,In-situ observation,Raman spectroscopy

Annealing Ag thin film deposited on Ge (111) results in the formation of germanene, a monolayer honeycomb lattice of Ge. We carried out in-situ Raman spectroscopy and revealed that Ge atoms formed sp3-Ge structure at first, lost the crystalline structure at 520℃, and formed germanene after the rapid cooling to room temperature. We will discuss the details of the germanene growth mechanism in the presentation.