Substrate-modulated ferromagnetism of two-dimensional Fe3GeTe2

被引：33
|
作者：
Zhang, Luman [1 ,2 ]
Song, Luyao [3 ,4 ]
Dai, Hongwei [1 ,2 ]
Yuan, Jun-Hui [3 ,4 ]
Wang, Mingshan [1 ,2 ]
Huang, Xinyu [3 ,4 ]
Qiao, Lei [5 ,6 ]
Cheng, Hui [1 ,2 ]
Wang, Xia [7 ]
Ren, Wei [5 ,6 ]
Miao, Xiangshui [3 ,4 ]
Ye, Lei [3 ,4 ]
Xue, Kan-Hao [3 ,4 ]
Han, Jun-Bo [1 ,2 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China
[3] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China
[4] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[5] Shanghai Univ, Dept Phys, Shanghai Key Lab High Temp Superconductors, MGI, Shanghai 200444, Peoples R China
[6] Shanghai Univ, ICQMS, Shanghai 200444, Peoples R China
[7] Wenhua Coll, Sch Math & Phys, Wuhan 430074, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2020年 / 116卷 / 04期
关键词：
Ferromagnetism;
D O I：
10.1063/1.5142077
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We systematically investigated the modulation effects of substrates on the ferromagnetism properties of Fe3GeTe2 experimentally and theoretically. The polar refractive magnetic circular dichroism results demonstrate that the ferromagnetism could be modulated significantly by selecting different substrates. We explain this phenomenon using the first-principles calculation, revealing that it was induced by the lattice distortion and charge redistribution between the interfaces. Our work is useful to understand the fundamental mechanism of tunable ferromagnetism and paves the way for exploring interface physics and practical spintronic applications of two-dimensional ferromagnetic van der Waals crystals.
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页数：5
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