Magnetic metals deposited on graphene hold the key to applications in spintronics.Here,we present the results of Fe islands grown on graphene/SiC(0001)by molecular beam epitaxy,which are investigated by scanning tunneling microscopy.The two types of islands distinguished by flat or round tops are revealed,indicating bimodal growth of Fe.The atomic structures on the top surfaces of flat islands are also clearly resolved.Our results may improve the understanding of the mechanisms of metals deposited on graphene and pave the way for future spintronic applications of Fe/graphene systems.
Key Laboratory of Artificial Structures and Quantum Control(Ministry of Education),TD Lee Institute,Shenyang National Laboratory for Materials Science,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China
Department of Physics,Southern University of Science and Technology,Shenzhen 518055,China
Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area(Guangdong),Shenzhen 518045,China
Ministry of Science and Technology of ChinaMinistry of Science and Technology of China国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金中国科学院战略规划重点项目上海市科委项目上海市科委项目上海市科委项目Innovation Program for Quantum Science and Technology