[21a-A306-1~9] 17.2 Graphene

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[21a-A306-5] Fe intercalation in graphene/SiC (0001) and its interface structure

〇(D)Ryotaro Sakakibara¹, Tomo-o Terasawa^2,3, Wataru Norimatsu⁴ (1.Nagoya Univ., 2.JAEA, 3.Univ. of Tokyo, 4.Waseda Univ.)

Keywords:

graphene,intercalation,TEM

Thermal decomposition of SiC(0001) yields a so-called buffer layer (BL), which is a reconstructed carbon layer on SiC(0001). It is possible to convert this BL to monolayer graphene by intercalation of a foreign element. As a result, foreign atoms are arranged two-dimensionally at the graphene/SiC interface. In this study, the ferromagnetic element Fe was intercalated and its interface structure was investigated. Cross-sectional TEM observation revealed uniform atomic layers of Fe at the graphene/SiC interface. The number of there Fe layers was two to four, and they had a stacking structure similar to that of hexagonal SiC.