李鹏

个人信息Personal Information

特任教授

博士生导师

硕士生导师

教师拼音名称:Li Peng

电子邮箱:

职务:特任教授

办公地点:安徽省合肥市金寨路96号北校区融合楼213室

联系方式:+86(0551)63607785

学位:博士

毕业院校:美国圣母大学University of Notre Dame

学科:电子科学与技术

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

Y. Zhang, X. Yang, P. Li*, M. Wu. Strain Engineering of Magnetic Proximity Effect and Spin-Orbit Torque in Heavy Metal/Ferromagnet Heterostructures

点击次数:

DOI码:10.1016/j.jmmm.2019.166112

发表刊物:Journal of Magnetism and Magnetic Materials

摘要:Spin-orbit torque (SOT) has been proposed as an efficient mechanism to switch the magnetization in heavy metal/ferromagnet heterostructures. Several experiments show controversial results on the relationship between the magnetic proximity effect (MPE) and the SOT efficiency in heavy metal/ferromagnet structures. In this work, we use first-principles calculations to investigate the dependence of the MPE and the SOT efficiency on the Pt/CoFe interfacial strain in a model structure of Pt/CoFe/MgO. We have found that the interfacial strain can effectively reduce electron hybridization between Pt and CoFe and thereby significantly suppress the MPE while enhance the SOT efficiency. Thermodynamic magnetics analysis further confirmed these findings. Our results have pointed out a new research direction in which one uses interfacial strain as an effective route to design efficient spintronic devices.

论文编号:166112

学科门类:工学

是否译文:

发表时间:2020-04-15