Email: qiunanxu91ATA_sdu._edu._cn (Please remove _ and change ATA to @)
Research Area:
·Topological Insulators and Semimetals
·Density Functional Theory (DFT) calculations
·High-throughput calculation methods
·Nonlinear optical response calculations
Technical Skills:
·Familiar with topological band theory and group theory
·Development of material searching method based on Materials Project and ICSD, libraries of materials
·Familiar with first-principle calculation software, i.e. VASP, WIEN2k and FPLO
·Programming with Linux, Python, Fortran and Matlab
Publications:
1.Magnetic Weyl Semimetal Phase in a Kagomé Crystal, D. F. Liu*, A. J. Liang*, E. K. Liu*, Q. N. Xu*, Y. W. Li, C. Chen, et al., Science 365(6459), 1282 (2019);
2.Fermi-arc diversity on surface terminations of the magnetic Weyl semimetal Co3Sn2S2, N. Morali, R. Batabyal, P. K. Nag, E. K. Liu, Q. N. Xu, et al., Science 365(6459), 1286 (2019);
3.Observation of three-component fermions in the topological semimetal molybdenum phosphide, B. Q. Lv*, Z. L. Feng*, Q. N. Xu*, J. Z. Ma, L. Y. Kong, P. Richard, Y. B. Huang, et al., Nature 546, 627 (2017);
4.Giant anomalous Hall effect in a ferromagnetic kagome-lattice semimetal, E. K. Liu, Y. Sun, N. Kumar, L. Muechler, A. Sun, L. Jiao, S. Y. Yang, D. F. Liu, A. J. Liang, Q. N. Xu, et al., Nature Physics 14(11), 1125 (2018);
5.Surface states in bulk single crystal of topological semimetal Co3Sn2S2 towards water oxidation, G. W. Li*, Q. N. Xu*, W. J. Shi, C. G. Fu, L. Jiao, et al., Science Advances 5(8), eaaw9867 (2019);
6.Two dimensional Berry curvature-driven large anomalous Hall effect in layered topological nodal-line MnAlGe, S. N. Guin, Q. N. Xu, N. Kumar, H.‐H. Kung, S. Dufresne, et al., Advanced Materials 2006301 (2021);
7.Carbon-Tailored Semimetal MoP as an Efficient Hydrogen Evolution Electrocatalyst in Both Alkaline and Acid Media, G. W. Li, Y. Sun, J. C. Rao, J. Q. Wu, A. Kumar, Q. N. Xu, C. G. Fu, et al., Advanced Energy Materials 8 (24), 1801258 (2018);
8.Topological Insulators versus Topological Dirac Semimetals in Honeycomb Compounds, X. W. Zhang*, Q. H. Liu*, Q. N. Xu*, X. Dai, and A. Zunger, JACS 140 (42), 13687-13694 (2018);
9.Descriptor for Hydrogen Evolution Catalysts Based on the Bulk Band Structure Effect, Q. N. Xu*, G. W. Li*, Y. Zhang, Q. Yang, Y. Sun, and C. Felser, ACS Catalysis 10, 5042-5048 (2020);
10.Comprehensive scan for nonmagnetic Weyl semimetals with nonlinear optical response, Q. N. Xu*, Y. Zhang*, K. Koepernik, W. J. Shi, J. van den Brink, et al., npj Computational Materials 6:32 (2020);
11.Topologically entangled Rashba-split bands on the grey arsenic surface, P. Zhang*, J. Z. Ma*, Y. Ishida*, Q. N. Xu, B. Q. Lv, K. Yaji, L. X. Zhao, et al., Phys. Rev. Lett. 118, 046802(2017);
12.Compensated semimetal LaSb with unsaturated magnetoresistance, L. K. Zeng*, R. Lou*, D. S. Wu*, Q. N. Xu, P. J. Guo, L. Y. Kong, Y. G. Zhong, J. Z. Ma, et al., Phys. Rev. Lett. 117, 127204 (2016);
13.Optical method to detect the relationship between chirality of reciprocal space chiral multifold fermions and real space chiral crystals, Y. Sun, Q. N. Xu, Y. Zhang, C. C. Le, and C. Felser, Phys. Rev. B 102, 104111 (2020);
14.Emerging chiral edge states from the confinement of a magnetic Weyl semimetal in Co3Sn2S2, L. Muechler, E. K. Liu, J. Gayles, Q. N. Xu, C. Felser, and Y. Sun, Phys. Rev. B 101, 115106 (2020);
15.Signatures for half-metallicity and nontrivial surface states in the kagome lattice Weyl semimetal Co3Sn2S2, L. Jiao*, Q. N. Xu*, Y. Cheon, Y. Sun, E. K. Liu, et al., Phys. Rev. B 99, 245158 (2019);
16.Large anomalous Hall and Nernst effect from nodal line symmetry breaking in Fe2MnX (X=P,As,Sb), J. Noky, Q. N. Xu, C. Felser, Yan Sun, Phys. Rev. B 99, 165117 (2019);
17.Topological surface Fermi arcs in the magnetic Weyl semimetal Co3Sn2S2, Q. N. Xu, E. K. Liu, W. J. Shi, L. Muechler, J. Gayles, C. Felser, Y. Sun, Phys. Rev. B 97, 235416 (2018);
18.Observation of Landau quantization and standing waves in HfSiS, L. Jiao, Q. N. Xu, Y. P. Qi, S. C. Wu, Y. Sun, C. Felser, and S. Wirth, Phys. Rev. B 97, 195137 (2018);
19.Visualization of electronic topology in ZrSiSe by scanning tunneling microscopy, K. L. Bu, Y. Fei, W. Zhang, Y. Zheng, J. Wu, F. Chen, X. Luo, Y. Sun, Q. N. Xu, X. Dai, and Y. Yin, Phys. Rev. B 98, 115127 (2018);
20.Topological Nodal Line Semimetals in CaP3 family of materials, Q. N. Xu, R. Yu, Z. Fang, X. Dai, H. M. Weng, Phys. Rev. B 95, 045136 (2017);
21. Magnetotransport properties in compensated semimetal gray arsenic, L. X. Zhao*, Q. N. Xu*, X. M. Wang, et al., Phys. Rev. B 95, 115119 (2017);
22.Evidence of topological insulator state in LaBi semimetal, R. Lou, B. B. Fu, Q. N. Xu, P. J. Guo, L. Y. Kong, L. K. Zeng, et al., Phys. Rev. B 95, 115140 (2017);
23.Emergence of topological bands on the surface of ZrSnTe crystal, R. Lou*, J. Z. Ma*, Q. N. Xu*, B. B. Fu, L. Y. Kong, Y. G. Shi, P. Richard, H. M. Weng, et al., Phys. Rev. B 93, 241104(R) (2016);
24.Two-Dimensional Oxide Topological Insulator with Iron-Pnictide Superconductor LiFeAs Structure, Q. N. Xu, Z. D. Song, S. M. Nie, H. M. Weng, Z. Fang, X. Dai, Phys. Rev. B 92, 205310 (2015);
25.Topological Node-Line Semimetal in Three-Dimensional Graphene Networks, H. M. Weng, Y. Y. Liang, Q. N. Xu, R. Yu, Z. Fang, X. Dai, and Y. Kawazoe, Phys. Rev. B 92, 045108 (2015);
26.Spin Nernst effect in a p-band semimetal InBi, Y. Zhang*, Q. N. Xu*, K. Koepernik, C. G. Fu, J. Gooth, J. van den Brink, et al., New Journal of Physics 22, 093003 (2020).
