Current Professional Societies

1. standing board member of Chinese Society for Composite Materials;

2. Deputy Director of the Mechanics Professional Committee of Chinese Society for Composite Materials;

3. Member of International Association for Computational Mechanics.

Research Areas

· Physics in Nano-scale artificial and natural superstructures : Interfacial and symmetry-broken effect on lattice dynamics and electronic structure

· Atomic structure of metastable and amorphous phases

· Atomic scale physics and chemistry in doped and alloy semiconductors

· Atomic scale physics and chemistry in electrodes and electrolyte of Li-batteries

Honors

· 2011 The 11th outstanding scientific and technological papers of Beijing Youth

· 2011 The best science and technology contribution Prize of IMPM in 2011

Represented Publications

1.Liu, X. Q., Han, X. D., Zhang, Z., Ji, L. F., & Jiang, Y. J. (2007). Structural correlations of the enhancement of dielectric permittivity in the (Ta[sub 2]O[sub 5])[sub 0.92](TiO[sub 2])[sub 0.08] system. Applied Physics Letters, 90(21), 211904.

2.Liu, X. Q., Han, X. D., Zhang, Z., Ji, L. F., & Jiang, Y. J. (2007). The crystal structure of high temperature phase Ta2O5. Acta Materialia, 55(7), 2385–2396. 

3. Li, X. Bin,Liu, X. Q., Liu, X., Han, D., Zhang, Z., Han, X. D., … Zhang, S. B. (2011). Role of electronic excitation in the amorphization of Ge-Sb-Te alloys. Physical Review Letters, 107(1), 1–4.

4.Liu, X. Q., Li, X. B., Zhang, L., Cheng, Y. Q., Yan, Z. G., Xu, M., … Ma, E. (2011). New Structural Picture of the Ge_{2}Sb_{2}Te_{5} Phase-Change Alloy. Physical Review Letters, 106(2), 025501.

5.Liu, X. Q., Li, X. B., Zhang, L., Cheng, Y. Q., Yan, Z. G., Xu, M., … Ma, E. (2012). Liu et al. Reply: Physical Review Letters, 108(23), 239602.

6. Yan, N., Cheng, Y.,Liu, X. Q.*, Song, Z. T., & Zhang, Z. (2012). In situ transmission electron microscopy investigation of Six Sb100−x phase-change materials. Materials Letters, 84, 20–23.

7.Liu, X. Q., Li, X. B., Zhang, B., Zhang, S. B., Ma, E., Zhang, Z., & Han, X. D. (2012). Truncated Lorch-window method revealing the off-octahedral Ge in nanocrystalline Ge 2Sb 2Te 5. Physica Status Solidi (B) Basic Research, 249(10), 1914–1918.

8. Yan, N.,Liu, X. Q.*, Zhang, L., Zhang, Z., & Han, X. D. (2013). The amount of Ge tunes the atomic structure of amorphous GexTe1−x alloy. Chemical Physics Letters, 556, 108–112.

9. Bang, J., Sun, Y. Y.,Liu, X. Q., Gao, F., & Zhang, S. B. (2016). Carrier-Multiplication-Induced Structural Change during Ultrafast Carrier Relaxation and Nonthermal Phase Transition in Semiconductors. Physical Review Letters, 117(12), 1–6.

10. Shi, H.,Liu, X., Wu, R., Zheng, Y., Li, Y., Cheng, X., … Zhang, Y. (2019). In Situ SEM Observation of Structured Si/C Anodes Reactions in an Ionic-Liquid-Based Lithium-Ion Battery. Applied Sciences, 9(5), 956.

11. Cao, T., Cheng, X., Wang, M., Ma, J., Sang, L.,Liu, X.*, … Wang, J. (2019). Unveiling the thickness-dependent mechanical properties of graphene papers by in situ SEM tension . RSC Advances, 9(8), 4609–4615. 

12. Chen, X.,Liu, X.*, Cheng, Y., & Song, Z. (2019). The impact of vacancies on the stability of cubic phases in Sb–Te binary compounds. NPG Asia Materials, 11(1), 40.

Personal statement

Xianqiang Liu, Associate Professor, has been engaged in researching microstructure and properties of advanced materialsfor more than ten years and has published more than 20 SCI papers on international major journals.

The primary goal of my research is to explore how atomic and electronic structures affect the macroscopic properties of materials. In particular: how artificial and natural (super)structures affect the dielectric and thermoelectric properties (Acta MaterialsandAppl. Phys. Lett.); how the metastable and amorphous structure affect the physical properties (eg. the optical, electrical and phase change properties ) in phase change materials (PCM) (Phys. Rev. Lett.andNPG Asia Materials); the doping and alloying effect in semiconductor; the electrode materials and electrolyte in Li batteries. In many cases, our tool of choice will be an atomic-resolution electron microscope, in-situ electron microscope and ab initio calculation method.