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,任中国科学院物理研究所特聘研究员,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 Physics、Nature Electronics、Nature CommunicationsPhysical Review LettersNano Letters、ACS Nano、Physics Review AppliedPhysical Review BApplied Physics Letters 等国际重要期刊上发表学术论文60余篇,引用超过2000余次。

代表性论文及专利


---------------------------2018---------------------------
[64] C. He, G. Q. Yu*, C. Grezes, J. Feng, Z. Zhao, S. A. Razavi, Q. Shao, A. Navabi, X. Li, Q. L. He, M. Li, J. Zhang, K. L. Wong, D. Wei, G. Zhang, X. Han*, P. K. Amiri, K. L. Wang* “Spin-Torque Ferromagnetic Resonance in W/Co-Fe-B/W/Co-Fe-B/MgO Stacks” Physics Review Applied 10, 034067 (2018)

[63] Q. Wang*, J. Domann, G. Q. Yu, A. Barra, K. L Wang, G. P Carman* “Strain-mediated spin-orbit torque switching for magnetic memory” Physics Review Applied 10, 034052 (2018)

[62] X. Ma*, G. Q. Yu, S. A. Razavi, L. Chang, L. Deng, Z. Chu, C. He, K. L. Wang, X. Li “Correlation between Dzyaloshinskii Moriya interaction and spin mixing conductance at antiferromagnet/ferromagnet interface” Physics Review B 98, 104428 (2018)

[61] G. Q. Yu* “Two-terminal MRAM with a spin” Nature Electronics 1, 496 (2018)

[60] Q. Shao#, C. Tang#, G. Q. Yu* , A. Navabi, H. Wu, C. He, J. Li, P. Upadhyaya, P. Zhang, S. A. Razavi, Q. L. He, Y. Liu, P. Yang, S. K. Kim, C. Zheng, Y. Liu, L. Pan, R. K Lake, X. Han, Y. Tserkovnyak, J. Shi, K. L. Wang* “Role of dimensional crossover on spin-orbit torque efficiency in magnetic insulator thin films” Nature Communications 9, 3612 (2018)

[59] Q. L. He#*, G. Yin#, L. Yu#, A. J Grutter, L. Pan, X. Kou, X. Che, G. Q. Yu, T. Nie, B. Zhang, Q. Shao, K. Murata, X. Zhu, Y. Fan, X. Han, B. J Kirby, K. L Wang* "Topological transitions induced by antiferromagnetism in a thin-film topological insulator" Physical Review Letters 121, 096802 (2018)

[58] Q. L. He#*, G. Yin#, A. J. Grutter#, L. Pan, X. Che, G. Q. Yu, D. A. Gilbert, S. M. Disseler, Y. Liu, P. Shafer, B. Zhang, Y. Wu, B. J. Kirby, E. Arenholz, R. K. Lake, X. Han & K. L. Wang* “Exchange-biasing topological charges by antiferromagnetism” Nature Communications 9, 2767 (2018)

[57] 李文静,光耀,于国强*,万蔡华,丰家峰, 韩秀峰,“薄膜异质结中磁性斯格明子的相关研究” 物理学报 67 (13), 131204-131204 (邀请综述)

[56] M. He, G. Li, Z. Zhu, Y. Zhang*, L. Peng, R. Li, J. Li, H. Wei, T. Zhao, X. G. Zhang, S. Wang, S. Lin, L. Gu, G. Q. Yu, J. W. Cai*, and B. Shen "Evolution of topological skyrmions across the spin reorientation transition in Pt/Co/Ta multilayers" Physical Review B 97, 174419 (2018)

[55] X. Che, K. Murata, L. Pan, Q. He, G. Q. Yu, Q. Shao, G. Yin, P. Deng, Y. Fan, B. Ma, X. Liang, B. Zhang, X. Han, L. Bi, Q. Yang, H. Zhang and K. Wang* "Proximity-Induced Magnetic Order in a Transferred Topological Insulator Thin Film on a Magnetic Insulator" ACS Nano (2018)

[54] X. Ma*, G. Q. Yu, C. Tang, X. Li, C. He, J. Shi, K. L. Wang, and X. Li "Interfacial Dzyaloshinskii-Moriya Interaction: Effect of 5d Band Filling and Correlation with Spin Mixing Conductance" Physical Review Letters 120, 157204 (2018)

[53] H. Wu, L. Huang, C. Fang, B. S. Yang, C. H. Wan, G. Q. Yu, J. F. Feng, H. X. Wei, and X. F. Han* "Magnon Valve Effect between Two Magnetic Insulators" Physical Review Letters 120, 097205 (2018) Editors' Suggestion;Featured in Physics

[52] Y. Huang, X. Li, L. Wang, G. Q. Yu, K. L Wang, W. Zhao* "Room-temperature skyrmions in an antiferromagnet-based heterostructure" AIP Advances 8, 056314 (2018)

[51] G. Q. Yu#*, A. Jenkins#, X. Ma#, S. A. Razavi, C. He, G. Yin, Q.Shao, Q. He, H. Wu, W. Li, W. Jiang, X. Han, X. Li, A. C. B.Jayich, P. K. Amiri, K. L Wang* "Room-temperature skyrmions in an antiferromagnet-based heterostructure" Nano Letters 18, 980 (2018)

---------------------------2017---------------------------
[50] S. Tu#, J. Hu#, G. Q. Yu#, H. Yu*, C. Liu, F. Heimbach, X. Wang, J. Zhang, Y. Zhang, A. Hamzić, K. L. Wang, W. Zhao, J. Ansermet* "Anomalous Nernst effect in Ir22Mn78/Co20Fe60B20/MgO layers with perpendicular magnetic anisotropy" Applied Physics Letters 111, 222401 (2017)

[49] 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) 

[48] 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 in magnetic-insulator/heavy-metal heterostructures" Physical Review B 95, 241305(R) (2017)

[47] A. Navabi*, C. Chen, A. Barra, M. Yazdani, G. Q. Yu, M. Montazeri, M. Aldosary, J. Li, K. Wong, Q. Hu, J. Shi, G. P Carman, A. E Sepulveda, P. K. Amiri, K. L Wang* “Efficient excitation of high-frequency exchange-dominated spin waves in periodic ferromagnetic structures” Physical Review Applied 7, 034027 (2017)

[46] 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)

[45] X. Li#, K. Fitzell#, D. Wu, C. Ty Karaba, A. Buditama, G. Q. Yu, K. L. Wong, N. Altieri, C. Grezes, N. Kioussis, S. Tolbert, Z. Zhang, J. P. Chang, P. K. Amiri, and K. L. Wang “Enhancement of voltage-controlled magnetic anisotropy through precise control of Mg insertion thickness at CoFeB|MgO interface” Applied Physics Letters 110, 052401 (2017)

[44] 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)

[43] M. Li*, H. Shi, G. Q. Yu, J. Lu, X. Chen, G. Han, G. Yu, P. K. Amiri, K. L Wang "Effects of annealing on the magnetic properties and microstructures of Ta/Mo/CoFeB/MgO/Ta films" Journal of Alloys and Compounds 692, 243–248 (2017)

[42] 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)

[41] 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) 

---------------------------2016---------------------------
[40] 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)

[39] X. Ma, G. Q. Yu, X. Li, T. Wang, D. Wu, K. S. Olsson, Z. Chu, K. An, J. Q. Xiao, K. L. Wang, X. Li* "Interfacial Control of Dzyaloshinskii Moriya Interaction in Heavy Metal Ferromagnetic Metal Thin Film Heterostructures" Physical Review B 94, 180408(R) (2016)

[38] D. Wu, G. Q. Yu*, C. Chen, S. A. Razavi, Q. Shao, X. Li, B. Zhao, K. L. Wong, C. He, Z. Zhang, P. K. Amiri, and K. L. Wang "Spin-orbit torques in perpendicularly magnetized Ir22Mn78/Co20Fe60B20/MgO multilayer" Applied Physics Letters 109, 222401 (2016)

[37] C. He, A. Navabi, Q. Shao, G. Q. Yu*, D. Wu, W. Zhu, C. Zheng, X. Li, Q. L. He, S. A. Razavi, K. L. Wong, Z. Zhang, P. K. Amiri1 and K. L. Wang " Spin-torque ferromagnetic resonance measurements utilizing spin Hall magnetoresistance in W/Co40Fe40B20/MgO structures" Applied Physics Letters 109, 202404 (2016)

[36] D. Wu, G. Q. Yu*, Q. Shao, X. Li, H. Wu, K. L. Wong, Z. Zhang, X. Han, P. K. Amiri, K. L. Wang "In-plane current-driven spin-orbit torque switching in perpendicularly magnetized films with enhanced thermal tolerance" Applied Physics Letters 108, 212406 (2016)

[35] K. L. Wang*, X. Kou, P. Upadhyaya, Y. Fan, Q. Shao, G. Q. Yu, P. K. Amiri "Electric-Field Control of Spin-Orbit Interaction for Low-Power Spintronics" Proceedings of the IEEE 99, 1 (2016)
[34] L. Chang*, I. A. Fischer, J. Tang, C. Wang, G. Q. Yu, Y. Fan, K. Murata, T. Nie, M. Oehme, J. Schulze*, K. L Wang* "Electrical detection of spin transport in Si two-dimensional electron gas systems" Nanotechnology 27, 365701 (2016)

[33] M. Akyol, W. Jiang, G. Q. Yu, Y. Fan, M. Gunes, A. Ekicibil, P. K. Amiri, K. L. Wang "Effect of heavy metal layer thickness on spin-orbit torque and current-induced switching in Hf|CoFeB|MgO structures" Applied Physics Letters 109, 022403 (2016)

[32] M. Li*, J. Lu, G. Q. Yu, X. Li, G. Han, X. Chen, H. Shi, G. Yu, P. K. Amiri, K. L. Wang "Influence of inserted Mo layer on the thermal stability of perpendicularly magnetized Ta/Mo/Co20Fe60B20/MgO/Ta films" AIP Advances 6, 045107 (2016)

[31] 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) 

[30] G. Q. Yu*, M. Akyol, P. Upadhyaya, X. Li, C. He, Y. Fan, M. Montazeri, J. G. Alzate, M. Lang, K. L. Wong, P. K. Amiri* and K. L. Wang* “Competing effect of spin-orbit torque terms on perpendicular magnetization switching in structures with multiple inversion asymmetries” Scientific Reports 6, 23956 (2016)

[29] W. Jiang*, W. Zhang, G. Q. Yu, M. B. Jungfleisch, P. Upadhyaya, H. Somaily, J. E Pearson, Y. Tserkovnyak, K. L Wang, O. Heinonen, S. GE te Velthuis*, A. Hoffmann* “Mobile Néel skyrmions at room temperature: status and future” AIP Advances 6, 055602 (2016)

[28] D. Chien#, X. Li#, K. Wong, M. A. Zurbuchen, S. Robbennolt, G. Q. Yu, S. Tolbert, N. Kioussis, P. K. Amiri*, K. L. Wang*, J. P. Chang* “Enhanced voltage-controlled magnetic anisotropy in magnetic tunnel junctions with an MgO/PZT/MgO tunnel barrier” Applied Physics Letters 108, 112402 (2016)

[27] 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)

[26] 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)

---------------------------2015---------------------------
[25] 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)
[24] X. Li*, G. Q. Yu, H. Wu, P. V. Ong, K. Wong, Q. Hu, F. Ebrahimi, P. Upadhyaya, M. Akyol, N. Kioussis, X. F. Han, P. K. Amiri* and K. L. Wang* “Thermally stable voltage-controlled perpendicular magnetic anisotropy in Mo|CoFeB|MgO structures” Applied Physics Letters 107, 142403 (2015)

[23] P. Upadhyaya, G. Q. Yu, P. K. Amiri, and K. L. Wang, “Electric-field guiding of magnetic skyrmions” Physical Review B 92, 134411 (2015)

[22] P. K. Amiri*, J. Alzate, X. Cai, F. Ebrahimi, Q. Hu, K. Wong, C. Grezes, H. Lee, G. Q. Yu, X. Li, M. Akyol, Q. Shao, J. Katine, J. Langer, B. Ocker “Electric-Field-Controlled Magnetoelectric Random Access Memory: Progress, Challenges, and Scaling” , IEEE Trans. Magn. 99, 1 (2015)

[21] 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)

[20] M. Li*, Z. Zhao, L. Ma, G. Q. Yu, X. Lu, J. Teng, G. Yu, W. Zhou, P. Khalili Amiri, and K. L. Wang, “The Influence of a MgO Nanolayer on the Planar Hall Effect of NiFe” Journal of Applied Physics 117, 123908 (2015)

[19] M. Akyol, G. Q. Yu, J. G. Alzate, P. Upadhyaya, X. Li, K. L. Wong, A. Ekicibil, P. K. Amiri and K. L. Wang, “Current-Induced Spin-Orbit Torque Switching of Perpendicularly Magnetized Hf/CoFeB/MgO and Hf/CoFeB/TaOx Structures” Applied Physics Letters 106, 162409 (2015)

[18] G. Q. Yu, Z. Wang, M. Abolfath-Beygi, C. He, X. Li, K. L Wong, P. Nordeen, H. Wu, G. P. Carman, X. Han, I. A. Alhomoudi, P. K. Amiri, K. L. Wang, “Strain-induced modulation of perpendicular magnetic anisotropy in Ta/CoFeB/MgO structures investigated by ferromagnetic resonance” Applied Physics Letters 106 (7), 072402 (2015)

[17] M. Akyol, J. Alzate, G. Q. Yu, P. Upadhyaya, K. Wong, A. Ekicibil, P. K. Amiri and K. L Wang “Effect of the oxide layer on current-induced spin-orbit torques in Hf|CoFeB|MgO and Hf|CoFeB|TaOx structures” Applied Physics Letters 106 (3), 032406 (2015)

---------------------------2014---------------------------
[16] P. Guo, D. L. Li, J. F. Feng*, H. Kurt, G. Q Yu, J. Y. Chen, H. X. Wei, J. M. D. Coey, X. F. Han* “Conductance enhancement due to interface magnons in electron-beam evaporated MgO magnetic tunnel junctions with CoFeB free layer deposited at different pressure” Journal of Applied Physics 116, 153905 (2014)

[15] G. Q. Yu, L.T. Chang, M. Akyol, P. Upadhyaya, C. L. He, X. Li, K. L. Wong, P. K. Amiri, K. L Wang “Current-driven perpendicular magnetization switching in Ta/CoFeB/[TaOx or MgO/TaOx] films with lateral structural asymmetry” Applied Physics Letters 105, 102411 (2014)

[14] 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

[13] M. R. Lang#*, M. Montazeri#, M. Onbasli, X. F. Kou, Y. B. Fan, P. Upadhyaya, K. Y. Yao, F. Liu, Y. Jiang, W. J. Jiang, K. L Wong, G. Q. Yu, J. S. Tang, T. X. Nie, L. He, R. N Schwartz, Y. Wang, C. A Ross, K. L Wang* “Proximity Induced High Temperature Magnetic Order in Topological Insulator-Ferrimagnetic Insulator Heterostructure” Nano letters 14, 3459 (2014)

[12] 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)

[11] 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)

[10] J. G Alzate, PK Amiri, G. Q. Yu, P Upadhyaya, JA Katine, J Langer, Berthold Ocker, Ilya N Krivorotov, Kang L Wang, “Temperature dependence of the voltage-controlled perpendicular anisotropy in nanoscale MgO| CoFeB| Ta magnetic tunnel junctions” Applied Physics Letters 104, 112410 (2014)

---------------------------2013---------------------------
[9] D Li, J Feng, G. Q. Yu, P. Guo, . Chen, H. Wei, X. F. Han*, J. M. D. Coey, “Tunneling processes in asymmetric double barrier magnetic tunnel junctions with a thin top MgO layer”, Journal of Applied Physics 114, 213909 (2013)

[8] G. Q. Yu, C. Ren, S. Rizwan, T. Yu, K. Xu, X. F. Han*, “Superconductivity-induced pinning effect in superconductor/magnetic tunnel junctions”, SPIN 3, 1350006 (2013)

[7] D. L. Li, J. F. Feng, G. Q. Yu, H. X. Wei, X. Han*, J. COEY, “MgO-based double barrier magnetic tunnel junctions with the synthetic antiferromagnetic free layer”, IEEE Trans. Magn. 49, 5204 (2013)

---------------------------2012---------------------------
[6] S. Rizwan, G. Q. Yu, S. Zhang, Y. G. Zhao, X. F. Han*, “Electric-field control of CoFeB/IrMn exchange bias system”, Journal of Applied Physics 112, 064120 (2012)

[5] G. Q. Yu, J. Feng, H. Kurt, H. Liu, X. F. Han*, J. M. D. Coey, “Field sensing in MgO double barrier magnetic tunnel junctions with a superparamagnetic Co50Fe50 free layer”, Journal of Applied Physics 111, 113906 (2012)

[4] G. Q. Yu, H. Kurt, J. Feng, K. Xu, J. M. D. Coey, X. F. Han*, “Spin-dependent tunneling spectroscopy in MgO-based double-barrier magnetic tunnel junctions”, Journal of Applied Physics 111, 07C712 (2012)

---------------------------2011---------------------------
[3] G. Q. Yu, L. Chen, S. Rizwan, J. H. Zhao, K. Xu, X. F. Han*, “Improved tunneling magnetoresistance in (Ga, Mn) As/AlOx/CoFeB magnetic tunnel junctions”, Applied Physics Letters 98, 262501 (2011)

[2] Z. C. Wen, Y. Wang, G. Q. Yu, H. X. Wei, B. S. Zhang, K. Xu, X. F. Han*, “Patterned nanoscale magnetic tunnel junctions with different geometrical structures”, Spin 1, 109 (2011)

[1] G. Q. Yu, Z. Diao, J. F. Feng*, H. Kurt, X. F. Han, J. M. D. Coey, “1/f noise in MgO double-barrier magnetic tunnel junctions”, Applied Physics Letters 98, 112504 (2011)
 

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


电话:010-82649215

电话:

010-82649215

Email

guoqiangyu@iphy.ac.cn