于国强

简介:

1983年出生于黑龙江省。2007年7月于吉林大学(物理学院)获得理学学士学位。2012年7月于中国科学院物理研究所(磁学国家重点实验室)获凝聚态物理理学博士学位。2012年至2017年在加州大学洛杉矶分校(UCLA)从事博士后工作。2017年10月加入中国科学院物理研究所磁学国家重点实验室,任中国科学院“百人计划”特聘研究员,博士生导师。欢迎访问个人主页了解更多信息:https://sites.google.com/site/guoqiangyuyuguoqiang/home

主要研究方向:

从事自旋电子学(同时利用电子的自旋和电荷)材料和器件相关的研究。致力于探索磁性薄膜异质结材料、器件中自旋轨道耦合相关的物理效应及其在磁存储、磁逻辑方面的应用。目标是开发出具有高性能和高能源效率的新型自旋电子学器件。

过去的主要工作及获得的成果:

近年来一直致力于研究磁性薄膜异结材料和器件中的自旋轨道力矩和室温拓扑磁性斯格明子。至今已经在ScienceNature NanotechnologyNature MaterialsNature PhysicsNature CommunicationsPhysical Review LettersNano LettersPhysics Review AppliedPhysical Review BApplied Physics Letters 等国际重要期刊上发表学术论文50余篇,引用超过1600余次。

代表性论文及专利:

具体请见:https://scholar.google.com/citations?hl=en&user=IeUDtDoAAAAJ

(Equal Contribution#, Corresponding Author*)
[15] X. Ma#, G. Q. Yu#, S. A. Razavi, S. S. Sasaki, X. Li, K. Hao, S. H. Tolbert, K. L. Wang, and X. Li "Dzyaloshinskii-Moriya interaction across an antiferromagnet-ferromagnet interface" Physical Review Letters 119, 027202 (2017)

[14] J. Li#, G. Q. Yu#, C. Tang, Y. Liu, Z. Shi, Y. Liu, A. Navabi, M. Alsosary, Q. Shao, K. L. Wang, R. Lake and J. Shi* "Deficiency of the bulk spin Hall effect model for spin-orbit torques etal heterostructures" Physical Review B 95, 241305(R) (2017)

[13] S. A. Razavi#, D. Wu#, G. Q. Yu*, Y. Lau, K. L. Wong, W. Zhu, C. He, Z. Zhang, J. M. D. Coey, P. Stamenov, P. K. Amiri, K. L. Wang “Joule heating effect on field-free magnetization switching by spin-orbit torque in exchange-biased systems” Physical Review Applied 7, 024023 (2017)

[12] G. Q. Yu*, P. Upadhyaya, Q. Shao, H. Wu, G. Yin, X. Li, C. He, W. Jiang, X. Han, P. K. Amiri*, and K. L. Wang* "Room-temperature skyrmion shift device for memory application" Nano Letters 17 (1), pp 261–268 (2017)

[11] W. Jiang#*, X. Zhang#, G. Q. Yu, W. Zhang, X. Wang, M. B. Jungfleisch, J. E. Pearson, X. Cheng, O. Heinonen, K. L. Wang, Y. Zhou, A. Hoffmann*, S. G. E. te Velthuis* "Direct observation of the skyrmion Hall effect" Nature Physics 13, 162–169 (2017)

[10] Q. L. He#*, X. Kou#, A. J. Grutter#, G. Yin#, L. Pan, X. Che, Y. Liu, T. Nie, B. Zhang, S. M. Disseler, B. J. Kirby, W. Ratcliff II, Q. Shao, K. Murata, X. Zhu, G. Q. Yu, Y. Fan, M. Montazeri, X. Han, J. A. Borchers and K. L. Wang* "Tailoring exchange couplings in magnetic topological-insulator/antiferromagnet heterostructures" Nature Materials 16, 94–100 (2017)

[9] Q. Shao#*, G. Q. Yu#*, Y. Lan#, Y. Shi, M. Li, C. Zheng, X. Zhu, L. Li, P. Amiri, K. L. Wang* "Strong Rashba-Edelstein Effect-Induced Spin-Orbit Torques in Monolayer Transition Metal Dichalcogenides/Ferromagnet Bilayers" Nano Letters 16 (12), pp 7514–7520 (2016)

[8] J. Tang*, G. Q. Yu, C. Y. Wang, L. T. Chang, W. Jiang, C. He, K. L. Wang* “Versatile Fabrication of Self-Aligned Nanoscale Hall Devices using Nanowire Masks” Nano Letters 16 (5), pp 3109–3115 (2016)

[7] G. Q. Yu#, P. Upadhyaya#, X. Li, W. Li, S. K. Kim, Y. Fan, K. L Wong, Y. Tserkovnyak, P. K. Amiri*, K. L Wang* “Room-temperature creation and spin-orbit torque manipulation of skyrmions in thin films with engineered asymmetry” Nano Letters 16, 1981 (2016)

[6] Y. Fan#*, X. Kou#, P. Upadhyaya#, Q. Shao, L. Pan, M. Lang, X. Che, J. Tang, M. Montazeri, K. Murata, L. Chang, M. Akyol, G. Q. Yu, T. Nie, K. L. Wong, J. Liu, Y. Wang, Y. Tserkovnyak, K. L. Wang* “Electric-field control of spin-orbit torque in a magnetically doped topological insulator” Nature Nanotechnology 11, 352–359 (2016)

[5] M. Montazeri#*, P. Upadhyaya#, M. C. Onbasli, G. Q. Yu, K. L Wong, M. Lang, Y. Fan, X. Li, P. Khalili Amiri, R. N. Schwartz, C. A. Ross, K. L. Wang* “Magneto-optical investigation of spin-orbit torques in metallic and insulating magnetic heterostructures” Nature communications 6, 8958 (2015)

[4] W. Jiang, P. Upadhyaya, W. Zhang, G. Q. Yu, M. B. Jungfleisch, F. Y. Fradin, J. E. Pearson, Y. Tserkovnyak, K. L. Wang, O. Heinonen, S. G. E. te Velthuis and A. Hoffmann*, “Blowing Magnetic Skyrmion Bubbles” Science 349, 283 (2015)

[3] G. Q. Yu#*, P. Upadhyaya#, Y. B. Fan, J. G. Alzate, W. J. Jiang, K. L Wong, S. Takei, S. A. Bender, L. T. Chang, Y. Jiang, M. R. Lang, J. S. Tang, Y. Wang, Y. Tserkovnyak, P. Khalili Amiri, K. L Wang* “Switching of perpendicular magnetization by spin-orbit torques in the absence of external magnetic fields” Nature Nanotechnology 9, 548 (2014); Highlighted in Nature Nanotech. - News and Views

[2] Y. Fan#*, P. Upadhyaya#, X. F. Kou#, M. R. Lang, S. Takei, Z. X. Wang, J. S. Tang, L. He, L. T. Chang, M. Montazeri, G. Q. Yu, W. J. Jiang, T.X. Nie, R. N Schwartz, Y. Tserkovnyak, K. L Wang* “Magnetization switching through giant spin–orbit torque in a magnetically doped topological insulator heterostructure” Nature materials 13, 699 (2014)

[1] G. Q. Yu*, P. Upadhyaya, K. L. Wong, W. Jiang, J. G. Alzate, J. Tang, P. K. Amiri*, K. L. Wang* “Magnetization switching through spin-Hall-effect-induced chiral domain wall propagation” Physical Review B 89, 104421 (2014)

目前的研究课题及展望:

(1)研究室温拓扑磁性斯格明子的物理及其器件应用;(2)研究磁性异质结中的自旋轨道力矩及其在存储、逻辑器件中的应用。

培养研究生情况:

每年拟招收硕博连读研究生1-2名,欢迎具有物理或材料专业背景的考生联系报考。

其他联系方式:

手机号:18701532981

电话:

010-82649215

Email:

guoqiangyu@iphy.ac.cn