Investigate Electronic States and Magnetic Properties of C84 Molecules Embedded Si(111) Substrate
Pei-Fang Chung1*, Che-Fu Chou1, Mon-Shu Ho1
1Department of Physcis, National Chung Hsing University, Taichung, Taiwan
* presenting author:Pei-Fang Chung,
We studied the surface electronic states of carbon 84 molecules embedded Si(111) substrate using Ultra High Vacuum Scanning Tunneling Microscope (UHV-STM). The band gap energy of C84 embedded Si(111) substrate is around 3.8±0.5eV. Furthermore, we investigated surface magnetic properties by magnetic force microscope (MFM) and Magneto-optic Kerr effect (MOKE). Our result shows C84 cluster has Ferromagnetic domains. Our results indicate that C84 molecules embedded Si(111) substrate could serve as a motivator for further studies on electrical devices and applications.

Keywords: STM, C84, Si(111)-7x7, MFM, MOKE