| Title | Gate-tunable high magnetoresistance in monolayer Fe3GeTe2 spin valves |
| Authors | Yang, Jie Quhe, Ruge Liu, Shiqi Peng, Yuxuan Sun, Xiaotian Zha, Liang Wu, Baochun Shi, Bowen Yang, Chen Shi, Junjie Tian, Guang Wang, Changsheng Lu, Jing Yang, Jinbo |
| Affiliation | Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China Peking Univ, Sch Phys, Beijing 100871, Peoples R China Peking Univ, Inst Condensed Matter & Mat Phys, Sch Phys, Beijing 100871, Peoples R China Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China Luoyang Normal Univ, Coll Chem & Chem Engn, Luoyang 471934, Peoples R China Luoyang Normal Univ, Henan Key Lab Funct Oriented Porous Mat, Luoyang 471934, Peoples R China Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China Peking Univ, Beijing Key Lab Magnetoelect Mat & Devices BKL ME, Beijing 100871, Peoples R China |
| Keywords | ROOM-TEMPERATURE DOMAIN-WALL RESISTIVITY GRAPHENE |
| Issue Date | 28-Nov-2020 |
| Publisher | PHYSICAL CHEMISTRY CHEMICAL PHYSICS |
| Abstract | Ferromagnetic order in two-dimensional (2D) van der Waals crystals has been attracting much attention recently. Remarkably, room temperature metallic ferromagnetism is realized in 2D Fe3GeTe2. Here we design a monolayer (ML) Fe3GeTe2 spin-valve device by attaching two ends to ferromagnetic electrodes and applying a magnetic field to these ferromagnetic electrodes. We investigate the spin-involved transport characteristics of such a spin valve by using ab initio quantum transport simulation. A high magnetoresistance of similar to 390% is obtained and significantly increased to 450-510% after the gates are introduced. The magnetoresistance of the ML Fe3GeTe2 spin valve is insensitive to the strain modulation. Our study provides a potential option for magnetic storage applications and will motivate further studies in spintronics based on this class of materials. |
| URI | http://hdl.handle.net/20.500.11897/599554 |
| ISSN | 1463-9076 |
| DOI | 10.1039/d0cp03761c |
| Indexed | SCI(E) |
| Appears in Collections: | 其他实验室 人工微结构和介观物理国家重点实验室 |
