Bimodal growth of Fe islands on graphene

doi:10.1088/1674-1056/ad322f

中国物理B ›› 2024, Vol. 33 ›› Issue (6): 68104-068104.doi: 10.1088/1674-1056/ad322f

Bimodal growth of Fe islands on graphene

Yi-Sheng Gu(顾翊晟)¹, Qiao-Yan Yu(俞俏滟)¹, Dang Liu(刘荡)¹, Ji-Ce Sun(孙蓟策)¹, Rui-Jun Xi(席瑞骏)¹, Xing-Sen Chen(陈星森)¹, Sha-Sha Xue(薛莎莎)¹, Yi Zhang(章毅)¹, Xian Du(杜宪)¹, Xu-Hui Ning(宁旭辉)¹, Hao Yang(杨浩)¹, Dan-Dan Guan(管丹丹)¹, Xiao-Xue Liu(刘晓雪)¹, Liang Liu(刘亮)¹, Yao-Yi Li(李耀义)¹, Shi-Yong Wang(王世勇)¹, Can-Hua Liu(刘灿华)¹, Hao Zheng(郑浩)^1,†, and Jin-Feng Jia(贾金锋)^1,2,3,‡

1 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;
2 Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China;
3 Quantum Science Center of Guangdong——Hong Kong——Macao Greater Bay Area (Guangdong), Shenzhen 518045, China

收稿日期:2024-02-18 修回日期:2024-03-08 接受日期:2024-03-11 出版日期:2024-06-18 发布日期:2024-06-18
通讯作者: Hao Zheng, Jin-Feng Jia E-mail:haozheng1@sjtu.edu.cn;JfJia@sjtu.edu.cn
基金资助:
We thank the Ministry of Science and Technology of China (Grant Nos. 2019YFA0308600 and 2020YFA0309000), the National Natural Science Foundation of China (Grant Nos. 92365302, 92065201, 22325203, 92265105, 12074247, and 12174252), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB28000000), and the Science and Technology Commission of Shanghai Municipality (Grant Nos. 2019SHZDZX01, 19JC1412701 and 20QA1405100) for financial support. We also acknowledge financial support from the Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0302500).

Bimodal growth of Fe islands on graphene

1 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;
2 Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China;
3 Quantum Science Center of Guangdong——Hong Kong——Macao Greater Bay Area (Guangdong), Shenzhen 518045, China

Received:2024-02-18 Revised:2024-03-08 Accepted:2024-03-11 Online:2024-06-18 Published:2024-06-18
Contact: Hao Zheng, Jin-Feng Jia E-mail:haozheng1@sjtu.edu.cn;JfJia@sjtu.edu.cn
Supported by:
We thank the Ministry of Science and Technology of China (Grant Nos. 2019YFA0308600 and 2020YFA0309000), the National Natural Science Foundation of China (Grant Nos. 92365302, 92065201, 22325203, 92265105, 12074247, and 12174252), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB28000000), and the Science and Technology Commission of Shanghai Municipality (Grant Nos. 2019SHZDZX01, 19JC1412701 and 20QA1405100) for financial support. We also acknowledge financial support from the Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0302500).

摘要/Abstract

摘要： 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.

关键词: graphene, magnetism, molecular beam epitaxy, scanning tunneling microscopy

Abstract: 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 words: graphene, magnetism, molecular beam epitaxy, scanning tunneling microscopy

中图分类号: (Molecular, atomic, ion, and chemical beam epitaxy)

81.15.Hi

73.20.-r (Electron states at surfaces and interfaces)

Yi-Sheng Gu(顾翊晟), Qiao-Yan Yu(俞俏滟), Dang Liu(刘荡), Ji-Ce Sun(孙蓟策), Rui-Jun Xi(席瑞骏), Xing-Sen Chen(陈星森), Sha-Sha Xue(薛莎莎), Yi Zhang(章毅), Xian Du(杜宪), Xu-Hui Ning(宁旭辉), Hao Yang(杨浩), Dan-Dan Guan(管丹丹), Xiao-Xue Liu(刘晓雪), Liang Liu(刘亮), Yao-Yi Li(李耀义), Shi-Yong Wang(王世勇), Can-Hua Liu(刘灿华), Hao Zheng(郑浩), and Jin-Feng Jia(贾金锋). Bimodal growth of Fe islands on graphene[J]. 中国物理B, 2024, 33(6): 68104-068104.

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Bimodal growth of Fe islands on graphene

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