Ferromagnetic MnSn Monolayer Epitaxially Grown on Silicon Substrate

• 作者: Di Wu Hui Zhao Jian Sun Qian-Qian Yuan Qianjin Wang Shao-Chun Li Zhaopeng Guo Zhen-Yu Jia Zhi-Qiang Shi
• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2020,（7）
• 所属期刊栏目: CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES
• 页码范围: 115-119
• 页数: 5页
• 语种: 英文
• DOI: 10.1088/0256-307X/37/7/077502

摘要

Two-dimensional (2D) ferromagnetic materials have been exhibiting promising potential in applications,such as spintronics devices.To grow epitaxial magnetic films on silicon substrate,in the single-layer limit,is practically important but challenging.In this study,we realized the epitaxial growth of MnSn monolayer on Si(111) substrate,with an atomically thin Sn/Si(111)-2√3 × 2√3-buffer layer,and controlled the MnSn thickness with atomic-layer precision.We discovered the ferromagnetism in MnSn monolayer with the Curie temperature (Tc) of ～54 K.As the MnSn film is grown to 4 monolayers,Tc increases accordingly to ～235 K.The lattice of the epitaxial MnSn monolayer as well as the Sn/Si(111)-2√3 × 2√3 is perfectly compatible with silicon,and thus an sharp interface is formed between MnSn,Sn and Si.This system provides a new platform for exploring the 2D ferromagnetism,integrating magnetic monolayers into silicon-based technology,and engineering the spintronics heterostructures.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Qian-Qian Yuan		1	0	0.0	0.0
2	Zhaopeng Guo		1	0	0.0	0.0
3	Zhi-Qiang Shi		1	0	0.0	0.0
4	Hui Zhao		1	0	0.0	0.0
5	Zhen-Yu Jia		1	0	0.0	0.0
6	Qianjin Wang		1	0	0.0	0.0
7	Jian Sun		1	0	0.0	0.0
8	Di Wu		1	0	0.0	0.0
9	Shao-Chun Li		1	0	0.0	0.0