Zhang Research Group (N07)

Nanoscale Physics and Devices Lab, IOP@CAS

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Prof. Luojun Du



Education & Experience 

Postdoctoral Researcher with Prof. Zhipei Sun (08/2018- present)                                                           Department of Electronics and Nanoengineering, Aalto University

Ph.D. in Condensed Matter Physics (09/2012- 06/2018)                                                                                 Institute of Physics, Chinese Academy of Sciences & Renmin University of China                                           Thesis Title: Optical spectroscopic study on 2D Transition metal dichalcogenides                                                Thesis Advisor: Prof. Guangyu Zhang

B.S., Physics (09/2008- 07/2012)                                                                                                                               Lanzhou University, China



Publication award from the Department of Electronics and Nanoengineering (2019)

Scholarship Award, Director of the Institute of Physics (2015, 2016 and 2017)

The First Prize Scholarship, Renmin University of China (2012 and 2014)

Scholarship Award of Innovative Talents Joint Training Base, Institute of Physics of the Chinese Academy of Sciences (2011)

First Class Prize, Contemporary Undergraduate Mathematical Contest in Modeling, China (2010)

The First Prize Scholarship, Lanzhou University, China (2009)


Professional society activities  

Serve as reviewers for American Physical Society (Physical Review Letters and Physical Review B), Nature Publishing Group (Nature Communications and Scientific Report), American Institute of Physics (Applied Physics Letters and Journal of Applied Physics), Royal Society of Chemistry (Nanoscale, Journal of Materials Chemistry and Physical Chemistry and Chemical Physics) and Wiley-VCH (Advanced Materials, Advanced Functional Materials and Journal of Raman Spectroscopy).


Research interest  

Dr. Luojun Du’s research focuses on discovering and understanding novel quantum phenomena in 2D materials and their vdW heterostructures on the basis of symmetry breaking, including but not limited to:

1) Exotic electrical, optical, magnetic and topological properties of 2D materials originating from their underlying symmetry breaking, e.g., bulk photogalvanic effect, nonlinear Hall effects, valley-vontrasting physics and 2D antiferromagnetism.

2) Engineering symmetry breaking of 2D materials and further exploring the coupling between different symmetry breaking (e.g., the coupling between spatial inversion symmetry breaking and time reversal symmetry breaking).

3) Moiré superlattices, e.g., moiré exciton, moiré phonon and various strongly correlated physics.


Selected publications 

Dr. Luojun Du has published 20 papers with first/co-first/corresponding author (39 papers in total), including 1 Nature Reviews Physics, 3 Nature Communications, 1 Physical Review Letters, 7 Physical Review B, 1 Advanced Functional Materials, 2 2D Materials and 2 Applied Physics Letters. The total citations are over 1200 times (H-index 17). Complete citation information available at Google Scholar(link)

1.Luojun Du*, Tawfique Hasan, Andres Castellanos-Gomez, Gui-Bin Liu, Yugui Yao, Chun Ning Lau, and Zhipei Sun*, Engineering symmetry breaking in two-dimensional layered materials,Nature Reviews Physics 3 (3), 193 (2021).

2. Luojun Du*, Yanchong Zhao, Linlu Wu, Xuerong Hu, Lide Yao, Yadong Wang, Xueyin Bai, Yunyun Dai, Jingsi Qiao, Md Gius Uddin, Xiaomei Li, Jouko Lahtinen, Xuedong Bai, Guangyu Zhang, Wei Ji, and Zhipei Sun, Giant anisotropic photonics in the 1D van der Waals semiconductor fibrous red phosphorus, Nature Communications 12 (1), 4822 (2021).

3. Luojun Du, Comment on “Disentangling Orbital and Valley Hall Effects in Bilayers of Transition Metal Dichalcogenides”,Accepted by Physical Review Letters .

4. Yanchong Zhao, Luojun Du* (corresponding author), Wei Yang, Cheng Shen, Jian Tang, Xiaomei Li, Yanbang Chu, Jinpeng Tian, Kenji Watanabe, Takashi Taniguchi, Rong Yang, Dongxia Shi, Zhipei Sun, and Guangyu Zhang*, Observation of logarithmic Kohn anomaly in monolayer graphene, Physical Review B 102 (16), 165415 (2020).

5. Luojun Du*, Yunyun Dai, and Zhipei Sun*, Twisting for Tunable Nonlinear Optics, Matter 3 (4), 987 (2020).

6. Mengzhou Liao # , Zheng Wei # , Luojun Du # (co-first author), Qinqin Wang, Jian Tang, Hua Yu, Fanfan Wu, Jiaojiao Zhao, Xiaozhi Xu, Bo Han, Kaihui Liu, Peng Gao, Tomas Polcar, Zhipei Sun, Dongxia Shi, Rong Yang*, and Guangyu Zhang*, Precise control of the interlayer twist angle in large scale MoS 2 homostructures, Nature Communications 11 (1), 2153 (2020). (2020 Top 50 Chemistry and Materials Sciences Articles)

7. Xuerong Hu, Luojun Du* (corresponding author), Yadong Wang, Jouko Lahtinen, Lide Yao, Zhaoyu Ren*, and Zhipei Sun, Raman fingerprints and exciton-phonon coupling in 2D ternary layered semiconductor InSeBr, Applied Physics Letters 116 (16), 163105 (2020).

8. Luojun Du* # , Jian Tang # , Yanchong Zhao # , Xiaomei Li, Rong Yang, Xuerong Hu, Xueyin Bai, Xiao Wang, Kenji Watanabe, Takashi Taniguchi, Dongxia Shi, Guoqiang Yu, Xuedong Bai, Tawfique Hasan, Guangyu Zhang*, and Zhipei Sun*, Lattice dynamics, phonon chirality and spin-phonon coupling in 2D itinerant ferromagnet Fe 3 GeTe 2 , Advanced Functional Materials 29 (48), 1904734 (2019).

9. Luojun Du , Qian Zhang, Tingting Zhang, Zhiyan Jia, Jing Liang, Gui-Bin Liu, Rong Yang, Dongxia Shi, Jianyong Xiang, Kaihui Liu, Zhipei Sun, Yugui Yao, Qingming Zhang*, and Guangyu Zhang*, Robust circular polarization of indirect Q-K transitions in bilayer 3R-WS 2 , Physical Review B 100 (16), 161404 (2019).

10. Luojun Du, Jian Tang, Jing Liang, Mengzhou Liao, Zhiyan Jia, Qinghua Zhang, Yanchong Zhao, Rong Yang, Dongxia Shi, Lin Gu, Jianyong Xiang, Kaihui Liu, Zhipei Sun*, and Guangyu Zhang*, Giant Valley Coherence at Room Temperature in 3R WS 2 with Broken Inversion Symmetry, Research 2019, 6494565 (2019).

11. Jing Zhang # , Luojun Du # (co-first author), Shun Feng # , Run-Wu Zhang, Bingchen Cao, Chenji Zou, Yu Chen, Mengzhou Liao, Baile Zhang, Shengyuan A. Yang, Guangyu Zhang*, and Ting Yu*, Enhancing and controlling valley magnetic response in MoS 2 /WS 2 heterostructures by all-optical route, Nature Communications 10 (1), 4226 (2019).

12. Luojun Du, Mengzhou Liao, Gui-Bin Liu*, Qinqin Wang, Rong Yang, Dongxia Shi, Yugui Yao, and Guangyu Zhang*, Strongly distinct electrical response between circular and valley polarization in bilayer transition metal dichalcogenides, Physical Review B 99 (19), 195415 (2019).

13. Luojun Du # , Yanchong Zhao # , Zhiyan Jia, Mengzhou Liao, Qinqin Wang, Xiangdong Guo, Zhiwen Shi, Rong Yang, Kenji Watanabe, Takashi Taniguchi, Jianyong Xiang, Dongxia Shi, Qing Dai, Zhipei Sun, and Guangyu Zhang*, Strong and tunable interlayer coupling of infrared-active phonons to excitons in van der Waals heterostructures, Physical Review B 99 (20), 205410 (2019).

14. Luojun Du # , Yuan Huang # , Yimeng Wang, Qinqin Wang, Rong Yang*, Jian Tang, Mengzhou Liao, Dongxia Shi, Youguo Shi, Xingjiang Zhou, Qingming Zhang*, and Guangyu Zhang*, 2D proximate quantum spin liquid state in atomic-thin α-RuCl 3 , 2D Materials 6 (1), 015014 (2018).

15. Luojun Du, Mengzhou Liao, Jian Tang, Qian Zhang, Hua Yu, Rong Yang, Kenji Watanabe, Takashi Taniguchi, Dongxia Shi, Qingming Zhang, and Guangyu Zhang*, Strongly enhanced exciton-phonon coupling in two-dimensional WSe 2 , Physical Review B 97 (23), 235145 (2018).

16. Luojun Du # , Zhiyan Jia # , Qian Zhang, Anmin Zhang, Tingting Zhang, Rui He, Rong Yang, Dongxia Shi, Yugui Yao, Jianyong Xiang, Guangyu Zhang*, and Qingming Zhang*, Electronic structure-dependent magneto-optical Raman effect in atomically thin WS 2 , 2D Materials 5 (3), 035028 (2018).

17. Luojun Du # , Tingting Zhang # , Mengzhou Liao, Guibin Liu, Shuopei Wang, Rui He, Zhipeng Ye, Hua Yu, Rong Yang, Dongxia Shi, Yugui Yao, and Guangyu Zhang*, Temperature-driven evolution of critical points, interlayer coupling, and layer polarization in bilayer MoS 2 , Physical Review B 97 (16), 165410 (2018).

18. Luojun Du, Qian Zhang, Benchao Gong, Mengzhou Liao, Jianqi Zhu, Hua Yu, Rui He, Kai Liu, Rong Yang, Dongxia Shi, Lin Gu, Feng Yan, Guangyu Zhang*, and Qingming Zhang*, Robust spin-valley polarization in commensurate MoS 2 /graphene heterostructures, Physical Review B 97 (11), 115445 (2018).

19. Luojun Du, Hua Yu, Mengzhou Liao, Shuopei Wang, Li Xie, Xiaobo Lu, Jianqi Zhu, Na Li, Cheng Shen, Peng Chen, Rong Yang, Dongxia Shi*, and Guangyu Zhang*, Modulating PL and electronic structures of MoS 2 /graphene heterostructures via interlayer twisting angle, Applied Physics Letters 111 (26), 263106 (2017). (Editor's picks)

20.Luojun Du , Hua Yu, Li Xie, Shuang Wu, Shuopei Wang, Xiaobo Lu, Mengzhou Liao, Jianling Meng, Jing Zhao, Jing Zhang, Jianqi Zhu, Peng Chen, Guole Wang, Rong Yang, Dongxia Shi, and Guangyu Zhang*, The Effect of Twin Grain Boundary Tuned by Temperature on the Electrical Transport Properties of Monolayer MoS 2 ,Crystals 6 (9), 115 (2016).