Shiqing DENG

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Shiqing DENG

Associate Professor

office location:Physics & Chemistry Building 205

E-mail:sqdeng@ustb.edu.cn

Research Interests:1. Application and development of advanced transmission electron microscopy methods in materials research at the atomic scale, to probe electron, spin and lattice correlations and dynamics, and to understand materials’ physical and chemical behavior; 2. Electron energy-loss spectroscopy; 3. In-situ electron microscopy; 4. Multiferroic, ferroelectric, and piezoelectric materials; 5. Energy materials, including Li/Na-ion batteries.

Resume

2019. 08-present: Associate Professor, School of Mathematics and Physics, University of Science and Technology Beijing (USTB), China; 2017. 09-2018. 10: Visiting Scholar, Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, USA. Host: Prof. Yimei Zhu, Fellow of APS, AAAS, MRS, MSA, MAS; 2014. 09-2019. 07: Ph.D., Materials Science and Engineering, Tsinghua University, China. Supervisor: Prof. Jing Zhu, Member of Chinese Academy of Sciences;

Scientific research achievements

1. Develop a new second-order modulation (SOM) formulism. Based on atomic-scale observation and analysis of a new charge-lattice modulation wave in hole-doped LuFe2O4+δ, we develop a new second-order modulation (SOM) formulism with an unusual quasiperiodic singularity by introducing a well-defined secondary modulation vector in both the phase and amplitude parameter spaces, which is applicable to a wide range of ordered systems, advancing our understanding of the nature of singularity and modulation (Phys. Rev. Lett. 2019). 2. Develop a method for generating new ferroelectrics. Develop a method for driving paraelectrics into ferroelectric states via the introduction of M/O-deficient (M for metal) perovskite nanoregions to form coherent interface with the film matrix. Using this method, strong ferroelectricity, equivalent to that of classic ferroelectrics, is achieved in a prototype paraelectric strontium titanate film (Adv. Mater. 2021). 3. Atomic-scale investigations and control of rare earth multiferroics. Systematically explore the lattice, charge and spin interactions and regulation methods of hexagonal rare earth manganites/ferrites multiferroics and realize the control and performance improvement of the improper ferroelectricity and anti-ferromagnetism by using interface strain and defect engineering (ACS AMI 2017, 2016).

Enrollment plan

1-2 Master students per year

Representative papers

1. Shiqing Deng, Lijun Wu, Hao Cheng, Jin-Cheng Zheng, Shaobo Cheng, Jun Li, Wenbin Wang, Jian Shen, Jing Tao, Jing Zhu*, and Yimei Zhu*, Phys. Rev. Lett. 122, 126401 (2019). 2. Tianyu Li#, Shiqing Deng#, Hui Liu, Shengdong Sun, Hao Li, Shuxian Hu, Shi Liu, Xianran Xing, and Jun Chen*, Adv. Mater. 33, 2008316 (2021) (#Contributed equally). 3. Shiqing Deng, Shaobo Cheng, Changsong Xu, Binghui Ge, Xuefeng Sun, Rong Yu, Wenhui Duan, and Jing Zhu*, ACS Appl. Mater. Interfaces 9, 27322 (2017). 4. Shiqing Deng#, Shaobo Cheng#, Ming Liu, and Jing Zhu*, ACS Appl. Mater. Interfaces 8, 25379 (2016) (#Contributed equally). 5. Zhixiu Liang, Liang Song, Shiqing Deng, Yimei Zhu, Eli Stavitski, Radoslav R. Adzic, Jingyi Chen*, and Jia X. Wang*, J. Am. Chem. Soc. 141, 9629 (2019). 6. Linxing Zhang, Jun Chen*, Longlong Fan, Oswaldo Diéguez, Jiangli Cao, Zhao Pan, Yilin Wang, Jinguo Wang, Moon Kim, Shiqing Deng, Jiaou Wang, Huanhua Wang, Jinxia Deng, Ranbo Yu, James F Scott, and Xianran Xing*, Science 361, 494 (2018).

Postgraduate training

1. He Jiaqi, Lv Jiawen (2021); 2. Tian Feng, Zhang Siqi, Zhang Ming (2020).