My Resume
Xufeng Kou
School of Information Science and Technology, ShanghaiTech University
Address: Room 318, No.3 SIST Bldg, No. 393 Middle Huaxia Rd, Pudong District, Shanghai, 201210
Email: kxf2323@gmail.com , kouxf@shanghaitech.edu.cn Contact: (86) 13761000142
·Department of Electrical Engineering, University of California, Los Angeles 2011.6–2015.1
Phd Candidate in Physical & Wave Electronics Areas
GPA: 3.854/4.0
·Department of Electrical Engineering, University of California, Los Angeles 2009.9–2011.6
Master of Eng. in Physical & Wave Electronics Areas
GPA: 3.963/4.0
·College of Info Science and Engineering, Zhejiang University 2007.9 – 2009.6
Bachelor of Eng. in Optical engineering
GPA: 3.99/4.0 (91.2/100) Ranking: 3% out of 81
·Chu Kochen Honors College, Zhejiang University 2005.9 – 2009.6
Bachelor of Eng. in Mixed Class of Engineering
GPA: 3.99/4.0 (90.5/100) Ranking: 8th out of 140
HONORS & AWARDS
·Distinguished PhD Dissertation Award, Electrical Engineering, UCLA 2015
·Chinese Outstanding Student Abroad Scholarship, China Scholarship Council 2013
·Qualcomm Innovation Fellowship, Qualcomm Inc. 2012
·Outstanding Graduate of Chu Kochen Honors College, Zhejiang University 2009
·Excellent Graduation Dissertation, Zhejiang University 2009
·Excellent Academic Scholarship of CKC College, ZJU 2006-2009
·First Prize (2nd out of 186) in the Mathematical Modeling Competition of ZJU 2007
RESEARCH EXPERIENCE
Device Research Laboratory, University of California, Los Angeles 2015.1 – Present
Postdoctoral Scholar Adviser: Prof. Kang L. Wang
MBE Group Leader
·Novel semiconductors thin film growth by Molecular Beam Epitaxial (MBE).
·New multi-functional hetero-structures based on (magnetic) topological insulators
·Low-power non-volatile spintronic devices
·New spin-orbit interaction-related physics and phenomena
Device Research Laboratory, University of California, Los Angeles 2009.9 – 2015.1
Graduate Student Researcher (GSR) Adviser: Prof. Kang L. Wang
Main project - Magnetic topological insulators (TIs) devices
·Magnetic TI films and TI-based heterostructures growth by MBE.
·Demonstration of quantum anomalous Hall effect (QAHE) without external field in magnetic TI films.
·Manipulation of electrical-field-controlled ferromagnetism in magnetic TI-based FET devices.
·Magnetization switching via giant spin-orbit torque (SOT) in magnetic TI-based MTJ devices.
Other projects:
·MBE growth of room-temperature Dilute Magnetic Semiconductors quantum dots and supperlattice structures.
·Setup and maintenance of ultra-high-vacuum (UHV) Perkin-Elmer MBE system.
Nanophotonics Group, Zhejiang University 2008.10 – 2009.6
Undergraduate Student Researcher Adviser: Prof. Guillaume Vienne
·Design and modeling micro-/nano-fiber resonators.
Computational Nonlinear & Quantum Optics Group, Strathclyde University. 2008.7 – 2008.10
IAESTE Intern Adviser: Prof. Francesco Papoff
· Modeling the EM field distribution of a single spherical scatterer and the properties of photonic nanojets.
SKILLS
Device Physics - Solid knowledge of semiconductor device physics.
- Ranked 1st in Physics of Semiconductor Devices (EE221B), Microwave Semiconductor Devices (EE221C), Solid-State Electronics I & II (EE223 & EE224) in 7 major graduate courses.
- Sub-45nm NMOS fabrication process and device simulations by Taurus TSUPREM (Synopsys).
- Quantum capacitance analysis of TI-based FET by VisualTCAD (Cogenda)
Integrated Circuit – Familiar with Cadence and HSPICE.
- Design Fully-Differential High-Speed High-Precision Amplifier using 0.18 mm technology.
- Design 1GHz low-power 6-bit Absolute-Value Detector using 90 nm technology.
Experimental Measurements – Experienced in material/device characterization techniques.
- Magneto- transport measurement by PPMS.
- Electrical properties characterizations by probe-station, spectrum analyzer, and multi-frequency LCR meter.
- Magneto/Optic characterizations by SQUID, MOKE, and FTIR.
- UHV system setup and maintenance.
Programming:
- Matlab, Labview, C/C++, Igor Pro
PUBLICATIONS
Book Chapter
1. K.L Wang, M.R Lang, and X.F Kou, “Spintronics of Topological Insulators” Handbook of Spintronics, 1-25 Springer Netherlands (2015)
l First author and Co-first author (*)
2. X.F Kou*, L. Pan*, J. Wang, Y.B Fan, et al., “Metal-to-Insulator Switching in Quantum Anomalous Hall states”, Nature Comm. 6:8474 (2015)
3. X.F Kou, Y.B Fan, M.R Lang, P. Upadhyaya, and K.L Wang, “Magnetic Topological Insulators and Quantum Anomalous Hall Effect” (invited review paper), Solid State Comm. 215-206, 34-53 (2015)
4. X.F Kou*, S.T Guo*, Y.B Fan*, L. Pan, M.R Lang, et al., “Scale-Invariant Quantum Anomalous Hall Effect in Magnetic Topological Insulators beyond Two-Dimensional Limit”, Phys. Rev. Lett. 113, 137201 (2014).
5. Y.B Fan*, P. Upadhyaya*, X.F Kou*, M.R Lang, S. Takei, et al., “Magnetization switching through giant spin-orbit torque in a magnetically doped topological insulator heterostructure”, Nature Materials 13, 699-704 (2014).
6. X.F Kou*, L. He*, M.R Lang*, Y.B Fan, et al., “Manipulating Surface-Related Ferromagnetism in Modulation-Doped Topological Insulators”, Nano Lett. 13, 4587-4593 (2013)
7. X.F Kou, M.R Lang, Y.B Fan, et al., “Interplay between Different Magnetisms in Cr-Doped Topological Insulators”, ACS Nano 7, 9205-9212 (2013)
8. L. He*, X.F Kou*, M.R Lang*, E.S Choi, Y. Jiang, et al. “Evidence of the two surface states of (Bi0.53Sb0.47)2Te3 films grown by van der Waals epitaxy”, Scientific Reports, 3:3406 (2013)
9. M.R Lang*, L. He*, X.F Kou*, P. Upadhyaya, Y.B Fan, et al. “Competing Weak Localization and Weak Antilocalization in Ultrathin Topological Insulators”, Nano Lett. 13, 48-53 (2012)
10. X.F Kou, W.J Jiang, M.R Lang, et al., “Magnetically doped semiconducting topological insulators”, J. Appl. Phys.112, 063912 (2012)
11. X.F Kou, L. He, F.X Xiu, et al., “Epitaxial growth of high mobility of Bi2Se3 thin film on CdS”, Appl. Phys .Lett. 98, 242102 (2011)
12. X.F Kou, G. Vienne, and G.H. Wang, “Modeling light Propagation through taper-microfiber structures integrated on substrates”, Chinese Optics Lett., 8, 560-563 (2010)
l Co-author
13. A.J Bestwick, E.J Fox, X.F Kou, L. Pan, K.L Wang, and D. Goldhaber-Gordon, “Precise quantization of the anomalous Hall effect near zero magnetic field”, Phys. Rev. Lett. 114, 187201 (2015)
14. D. Koumoulis, G.D Morris, L. He L, X.F Kou, D. King, D. Wang, M.D Hossain, K.L Wang, G.A Fiete, M.G Kanatzidis, and L.S Bouchard, “Nanoscale β-nuclear magnetic resonance depth imaging of topological insulators”, Proc. Natl. Acad. Sci. 112, E3645-E3650 (2015)
15. C.C Chen, M. Teague, L. He, X.F Kou, M.R Lang, W.T Fan, N. Woodward, K.L Wang, and N.C Yeh, “Magnetism-induced massive Dirac spectra and topological defects in the surface state of Cr-doped Bi2Se3 bilayer topological insulators”, accepted by New J. Phys. (2015)
16. T.X Nie, X.F Kou, J.S Tang, et al., “Supperlattice of FexGe1-x nanodots and nanolayers of spintronics application”, Nanotechnology 25, 505702 (2014)
17. J.S Tang, L.T Chang, X.F Kou, K. Murata, E.S Choi, et al., “Electrical Detection of Spin-Polarized Surface States Conduction in (Bi0.53Sb0.47)2Te3 Topological Insulator”, Nano Lett.14, 5423-5429 (2014)
18. M.R Lang, M. Montazeri, M.C Onbasli, X.F Kou, Y.B Fan, P. Upadhyaya, et al., “Proximity Induced High-Temperature Magnetic Order in Topological Insulator - Ferrimagnetic Insulator Heterostructure”, Nano Lett. 14, 3459-3465 (2014)
19. L. He, X.F Kou, and K.L Wang, “Review of 3D topological insulator thin-film growth by molecular beam epitaxy and potential applications” (invited review paper), Phys. Status Solidi RRL 7, 50-63(2013)
20. Y. Jiang, Y. Wang, J. Sagendorf, D. West, X.F Kou, X. Wei, L. He, K.L Wang, S.B Zhang, and Z. Zhang, “Direct Atom-by-Atom Chemical Identification of Nanostructures and Defects of Topological Insulators”, Nano Lett. 13, 2851-2856 (2013)
21. K.W Post, B.C Chapler, L. He, X.F Kou, K.L Wang, and D.N Basov, “Thickness-dependent bulk electronic properties in Bi2Se3 thin films revealed by infrared spectroscopy”, Phys. Rev. B 88, 075121 (2013)
22. J.M Zhang, W.M Ming, Z.G Huang, G.B Liu, X.F Kou, Y.B Fan, K.L Wang, and Y.G Yao, “Stability electronic, and magnetic properties of the magnetically doped topological insulators: Bi2Se3, Bi2Te3, and Sb2Te3”, Phys. Rev. B 88, 235131 (2013)
23. X.X Yu, L. He, M.R Lang, W.J Jiang, F.X Xiu, Z.M Liao, Y. Wang, X.F Kou, P. Zhang, J.S Tang, G. Huang, J. Zou and K.L Wang, “Separation of top and bottom surface conduction in Bi2Te3 thin films”, Nanotechnology 24, 015705 (2013)
24. C.P Chu, S. Arafin, T.X Nie, K.Y Yao, X.F Kou, L. He, C.Y Wang, et al. “Nanoscale growth of GaAs on patterned Si(111) substrate by Molecular Beam Epitaxy”, Cryst. Growth Des., 14(2), 593-598 (2013)
25. W.J Jiang, Y.B Fan, P. Upadhyaya, M.R Lang, M.S Wang, L.T Chang, K. Wong, J.S Tang, M. Lewis, J. Zhao, L. He, X.F Kou, C.F Zeng, X.Z Zhou, R.N. Schwartz, and K.L Wang, “Mapping the Domain Wall Pinning Profile by Stochastic Imaging Reconstruction”, Phys. Rev. B 87, 014427(2013)
26. F.X Xiu, N. Meyer, X.F Kou, L. He, M.R Lang, et al. “Quantum Capacitance in Topological Insulators”, Scientific Reports, 2:669/1-7 (2012)
27. L.H Bao, L. He, N. Meyer, X.F Kou, P. Zhang, Z.G Chen, et al. “Weak anti-localization and quantum oscillations of surface states in Topological Insulator Bi2Se2Te”, Scientific Reports, 2:726/1-7 (2012)
28. L. He, F.X Xiu, X.X Yu, M. Teague, W.J Jiang, Y.B Fan, X.F Kou, M.R Lang, Y. Wang, G. Huang, N.C Yeh, and K.L Wang, “Surface-dominated conduction in a 6 nm thick Bi2Se3 thin film”, Nano. Lett.12, 1486-1490 (2012)
29. Y. Wang, F.X Xiu, L. Cheng, L. He, M.R Lang, J.S Tang, X.F Kou, X.X Yu, X.W Jiang, Z.G Chen, J. Zou, and K.L Wang, “Gate-controlled surface conduction in Na-doped Bi2Te3 topological insulator nanoplates”, Nano. Lett. 12, 1170-1175 (2012)
30. F.X. Xiu, Y. Wang, X.F. Kou, P. Upadhyaya, Y. Zhou, J. Zou, and K.L Wang, “Synthesis of High Curie Temperature Fe0.02Ge0.98 Quantum Dots”, J. Am. Chem. Soc., 132 (33), 11425-11427 (2011)
31. F.X. Xiu, L. He, Y. Wang, L. Cheng, L.T. Chang, M.R. Lang, G. Huang, X.F. Kou, Y. Zhou, X.W. Jiang, Z.G. Chen, J. Zou, A. Shailos, and K.L. Wang, “Manipulating surface states in topological insulator nanoribbons”, Nature Nanotechnology, 6, 216-221 (2011)
32. M.R Lang, L. He, F.X Xiu, X.X Yu, J.S Tang, Y. Wang, X.F Kou, W.J Jiang, A.V. Fedorov, and K.L Wang, “Revelation of topological surface in Bi2Se3 thin films by in situ Al passivation”, ACS Nano, 6, 295-302 (2011)
33. L. He, F.X Xiu, Y. Wang, A.V Fedorov, G. Huang, X.F Kou, M.R Lang, W.P Beyermann, J. Zou, and K.L Wang, “Epitaxial Growth of Bi2Se3 Topological Insulator Thin Film on Si (111)”, J. Appl. Phys.109, 103702 (2011)
34. Y. Wang, Z.M Liao, H.Y Xu, F.X Xiu, X.F Kou, Y. Wang, K.L Wang, J. Drennan, and J. Zou, “Structural evolution of GeMn/Ge supperlattice grown by molecular beam epitaxy under different growth conditions”, Nano. Res. Lett. 6, 624 (2011)
35. B.F Alsubaie, M.S BenSaleh, A.A Alatawi, L. He, X.F Kou, X.X Yu, K.L Wang, G. Huang and F.X Xiu, “Selectively-grown III-V compound semiconductor nano/micro structures on silicon for optoelectronics applications ”, IEEE SIECPC’ 2011 1-4 (2011)
36. F.X. Xiu, Y. Wang, J.Y. Kim, P. Upadhyaya, Y. Zhou, X.F. Kou, W. Han, R.K. Kawakami, J. Zou, and K.L. Wang, “Room-Temperature Electric-Field Controlled Ferromagnetism in Mn0.05Ge0.95 Quantum Dots”, ACS Nano, 4(8), 4948-4954 (2010)
37. F.X. Xiu, Y. Wang, K. Wong, Y. Zhou, X.F. Kou, J. Zou, and K.L. Wang, “MnGe magnetic nanocolumns and nanowells”, Nanotechnology, 21, 255602 (2010)
38. F.X. Xiu, I.V. Oychinnikov, P. Upadhyaya, K. Wong, X.F. Kou, Y. Zhou, and K.L. Wang, “Voltage-controlled ferromagnetic order in MnGe quantum dots”, Nanotechnology, 21, 375606 (2010)
39. Y. Wang, F.X. Xiu, Y. Wang, H.Y. Xu, D. Li, X.F. Kou, K.L. Wang, A.P. Jacob, and J. Zou, “Effect of Mn concentration and growth temperature on nanostructures and magnetic properties of Ge1-xMnx grown on Si”, J. Crystal Growth 20, 3034-3039 (2010)
40. Y. Wang, F.X. Xiu, Y. Wang, X.F. Kou, A.P. Jacob, K.L. Wang, and J. Zou, “Mn-rich clusters in GeMn magnetic semiconductors: Structural evolution and magnetic property”, J. Alloys and Compounds 2, 273-377 (2010)
41. F. Papoff and X.F. Kou, “Spatial distribution of the total field of a spherical scatterer”, Opto-Electronic Eng. 35, 137-144 (2008)
Conferences
1. X.F Kou, Y.B Fan, L. Pan, Kang Wang, S.T Guo, W.L Lee, T.K Lee, E.S Choi, Y. Jiang, Y. Wang, “Investigation of Quantum Anomalous Hall Effect in Magnetic Topological Insulators”, APS March Meeting, San Antonio TX, March 2015
2. X.F Kou, L. He, M.R Lang, Yabin Fan, Ying Jiang, Yong Wang, Faxian Xiu, Kang Wang, “Manipulating Surface-induced Ferromagnetism in Modulation-doped Topological Insulators”, APS March Meeting, Baltimore MD, March 2013
3. X.F Kou, L. He, F.X Xiu, M.R Lang, Y. Wang, A. Federov, X. Yu, J. Zou, and K.L Wang, “Epitaxial growth of high quality Bi2Se3 thin films on CdS”, APS March Meeting, Boston MA, March 2012.
4. L. He, X.F Kou, M.R Lang, K.L Wang, E.S Choi, Y. Jiang, Y. Wang, and F.X Xiu, “Evidence of the two surface states of (Bi0.53Sb0.47)2Te3 films grown by van der Waals epitaxy”, APS March Meeting, Denver CO, March 2014.
5. T.X Nie, X.F Kou, Y.B Fan, J.S Tang, S.W Lee, M.R Lang, C.P Chu, L. He, L.T Chang, and K.L Wang, “MBE Growth of Si/MnGe Quantum Dot Superlattice with Curie Temperature beyond 400 K”, APS March Meeting, Denver CO, March 2014.
6. Y.B 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, Y. Tserkovnyak, and K.L Wang, “Magnetization switching via giant spin-orbit torque in a magnetically doped topological insulator heterostructure”, APS March Meeting, Denver CO, March 2014.
7. M. Montazeri, M.R Lang, M.C Onbasli, X.F Kou, L. He, C.A Ross, and K.L Wang, “Proximity effect induced magnetoresistance hysteresis loops in a topological insulator/YIG heterostructure”, APS March Meeting, Denver CO, March 2014.
8. C.C Chen, M.L Teague, N.D Woodward, N.C Yeh, L. He, X.F Kou, M.R Lang, and K.L Wang, “Scanning tunneling spectroscopic (STS) studies of the bulk magnetic doping effects on the surface state of Bi2Se3”, APS March Meeting, Denver CO, March 2014.
9. E. Fox, A. Bestwick, D. Goldhaber-Gordon, X. Feng, K. He, Y.Y Wang, Q.K Xue, X.F Kou, Y.B Fan, and K.L Wang, “Transport studies of thin film magnetic topological insulator nanostructures”, APS March Meeting, Denver CO, March 2014.
10. K. Post, B. Chapler, L. He, X.F Kou, A. Schafgans, K.L Wang, and D. Basov, “An infrared study of Bi2Se3 thin films”, APS March Meeting, Baltimore MD, March 2013
11. L. He, X.X Yu, X.F Kou, M.R Lang, K.L Wang, F.X Xiu, M. Teague, and N.C Yeh, “Surface-dominated conduction in a 6nm-thick Bi2Se3 thin film”, APS March Meeting, Boston MA, March 2012.
12. M.R Lang, L. He, X.X Yu, J.S Tang, X.F Kou, K.L Wang, and A. Federov, “Clear Revelation of Topological Surface States in Bi2Se3 Thin Films by in situ Al Passivation”, APS March Meeting, Boston MA, March 2012.
13. G. Vienne, A. Goillet, X.F Kou, P. Greiu, and L. Tong, “Performance of microfiber ring resonators”, 11th International Conference on Materials for Advanced Technologies, Singapore , 2009