中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 近代物理研究所
  3. 中国科学院近代物理研究所
Lowering critical current density for spin-orbit torque induced magnetization switching by ion irradiation

文献类型：期刊论文

作者Yun, Jijun1,3; Xi, Li1,3; Liu, Jie2; Zhang, Shengxia2; Chang, Meixia1,3; Mao, Jian1,3; Zuo, Yalu1,3
刊名APPLIED PHYSICS LETTERS
出版日期2019-07-15
卷号115期号:3页码:5
ISSN号0003-6951
DOI10.1063/1.5111937
通讯作者Zuo, Yalu(zuoyl@lzu.edu.cn) ; Xi, Li(xili@lzu.edu.cn)
英文摘要In ferromagnet/heavy metal heterostructures, critical current density (J(C)) refers to the minimum current density required to generate spin-orbit torque (SOT) for effective magnetization manipulation, including switching of magnetization and moving of domain walls and magnetic skyrmions. This critical current density is a key factor for next-generation SOT-based magnetic random access memory, racetrack memory, and logic devices. In this work, the critical current density for magnetization switching and the thermal stability of Pt/Co/Ta heterostructures in response to ion irradiation are studied. It is found that ion irradiation represents a promising approach for the wide tuning of the magnetic properties, such as the coercive force and the perpendicular magnetic anisotropy constant. It is also found that J(C) is significantly reduced after 500eV Ar+ irradiation. Meanwhile, the ratio between the thermal stability factor E/k(B)T and J(C) increases with an increase in the irradiation dose, although E/k(B)T decreases slightly with the irradiation dose. This work demonstrates that J(C) can be significantly reduced by an appropriate ion irradiation process and thereby demonstrates a promising approach for effective reduction of the power consumption in SOT-based spintronic devices.
WOS关键词DRIVEN
资助项目National Natural Science Foundation of China[51671098] ; Program for Changjiang Scholars and Innovative Research Team in University PCSIRT[IRT16R35] ; Natural Science Foundation of Gansu Province[17JR5RA210] ; Fundamental Research Funds for the Central Universities[lzujbky-2015-122]
WOS研究方向Physics
语种英语
WOS记录号WOS:000476586900031
出版者AMER INST PHYSICS
资助机构National Natural Science Foundation of China ; Program for Changjiang Scholars and Innovative Research Team in University PCSIRT ; Natural Science Foundation of Gansu Province ; Fundamental Research Funds for the Central Universities
源URL[http://119.78.100.186/handle/113462/132930]  
专题中国科学院近代物理研究所
通讯作者Xi, Li; Zuo, Yalu
作者单位1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
3.Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Yun, Jijun,Xi, Li,Liu, Jie,et al. Lowering critical current density for spin-orbit torque induced magnetization switching by ion irradiation[J]. APPLIED PHYSICS LETTERS,2019,115(3):5.
APA Yun, Jijun.,Xi, Li.,Liu, Jie.,Zhang, Shengxia.,Chang, Meixia.,...&Zuo, Yalu.(2019).Lowering critical current density for spin-orbit torque induced magnetization switching by ion irradiation.APPLIED PHYSICS LETTERS,115(3),5.
MLA Yun, Jijun,et al."Lowering critical current density for spin-orbit torque induced magnetization switching by ion irradiation".APPLIED PHYSICS LETTERS 115.3(2019):5.

入库方式： OAI收割

来源：近代物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。