Title: Associate Professor
Contact number:
Department: School of Physics
E-mail: zhiming_yu@bit.edu.cn
Address: Room 1420B, Middle School Building, School of Physics, No.5 Zhongguancun South Street, Haidian District, Beijing, China

My research interests are in the field of theoretical condensed matter physics, with particular emphasis on the magnetic and scattering properties of condensed matter systems, and on the prediction and classification of novel states based on symmetry. Current research interests include:
(1) Topological materials, such as topological insulators, topological metals, etc., have many novel physical properties that conventional materials cannot have. Topological materials not only revolutionize our understanding of energy band theory in theory, but also have broad prospects in application.
(2) New two-dimensional materials, such as graphene, silicene, etc., have completely different physical properties from conventional three-dimensional materials because of their special dimensions, and are easy to regulate, and are considered to be the carrier of a new generation of electronic devices, with a wide range of application potential.
(3) Scattering transport phenomenon. At present, I am mainly concerned about the transport phenomena in the following two cases: one is the special transport physical properties of novel topological materials under different external fields, and the other is the abnormal displacement of electrons scattered at the interface during transport.
The main research methods are tight bound model, Green function method, symmetry analysis, quantum scattering method and other theoretical and numerical methods.

2008.09-2014.06 Department of Physics, Renmin University of China, PhD, Condensed Matter Physics
2002.09-2006.06 Department of Applied Physics, Huazhong University of Science and Technology, Bachelor of Physics

2019.11-present, Associate Professor and Doctoral Supervisor, School of Physics, Beijing Institute of Technology
2016.10-2019.10, Postdoctoral Fellow, Singapore University of Technology and Design
2014.07-2016.09, Postdoctoral Fellow, School of Physics, Beijing Institute of Technology

Representative work (co-first author marked #, corresponding author marked *)
[1] Y. Liu, Z.-M. Yu*, C. Xiao, and S. A. Yang, Quantized circulation of anomalous shift in interface reflection, Phys. Rev. Lett. 125, 076801 (2020).
This work shows that annular integrals of anomalous displacements in interfacial reflections can be quantized, adding a new dimension to an important but very rare quantized physical quantity in physics.
[2] Z.-M. Yu, S. Guan#, X.-L. Sheng*, W. Gao*, and S. A. Yang*, Valley-layer coupling: A new design principle for valleytronics, Phys. Rev. Lett. 124, 037701 (2020).
Based on symmetry analysis, this work puts forward a new design concept of electric field regulating energy valley, and predicts the valley layer coupling materials with excellent properties, which plays an important role in promoting the application of energy valley electronics.
[3] X.-L. Sheng*, C. Chen#, H. Liu, Z. Chen, Z.-M. Yu*, Y. Zhao*, and S. A. Yang, Two-dimensional second-order topological insulator in graphdiyne, Phys. Rev. Lett. 123, 256402 (2019).
This work predicts that the synthesized material graphiyne is a two-dimensional high order topological insulator, which provides the first real material for studying high order topological insulators in two-dimensional systems.
[4] Z.-M. Yu, Y. Liu, Y. Yao, and S. A. Yang, Unconventional pairing induced anomalous transverse shift in Andreev reflection, Phys. Rev. Lett. 121, 176602 (2018).
This work investigated Andreev reflections at the interface of common metals and non-traditional superconductors, and found that p wave or d wave superconductivity can independently lead to the generation of anomalous lateral displacements without the need for spin-orbit coupling.
[5] Z.-M. Yu, Y. Yao, and S. A. Yang, Predicted unusual magnetoresponse in type-II Weyl semimetals, Phys. Rev. Lett. 117, 077202 (2016).
The Landau level collapse phenomenon without electric field is found in the second type of Weil semi-metal.
[6] J. Zhao*, H. Liu, Z. M. Yu, R. Quhe, S. Zhou, Y. Wang, C.-C. Liu, H. Zhong, N. Han, J. Lu*, Y. Yao*, K. Wu*. Rise of silicene: A competitive 2D material, Progress in Materials Science, 83, 24–151 (2016).
Other important work
[7] X. Feng, Y. Liu,* Z.-M. Yu*, Z. Ma, L. Ang, Y. Ang, and S. A. Yang, Super-Andreev reflection and longitudinal shift of pseudospin-1 fermions, Physical Review B 101, 235417 (2020).
[8] Z.-M. Yu, W. Wu#, X.-L. Sheng, Y. Zhao*, and S. A. Yang*, Quadratic and cubic nodal lines stabilized by crystalline symmetry, Physical Review B 99, 121106 (2019).
This work predicts the existence of noble-line semi-metals with high order dispersion (quadratic and cubic dispersion) and gives their complete classification under space groups.
[9] Z.-M. Yu, W. Wu#, Y. Zhao*, and S. A. Yang*, Circumventing the no-go theorem: A single Weyl point without surface fermi arcs, Physical Review B 100, 041118 (2019).
This work shows that when the Brillouin region of a system is completely enveloped by nodes, the No-go theorem no longer applies, resulting in the existence of a single Weyl point in such a system.
[10] Z.-M. Yu, Y. Liu, and S. Yang, Anomalous spatial shifts in interface electronic scattering, Frontiers of Physics 14, 33402 (2019).
This work briefly introduces the research progress of anomalous displacement in interfacial reflection in electronic systems in recent years.
[11] Z. Zhu, Z.-M. Yu#, W. Wu, L. Zhang, W. Zhang, F. Zhang*, and S. A. Yang*, Composite dirac semimetals, Physical Review B 100, 161401 (2019).
[12] Y. Liu*, Z.-M. Yu*, J. Liu, H. Jiang, and S. A. Yang, Transverse shift in crossed andreev reflection, Physical Review B 98, 195141 (2018).
[13] Z. Zhu, Y. Liu*, Z.-M. Yu*, S.-S. Wang, Y. Zhao, Y. Feng, X.-L. Sheng*, and S. A. Yang, Quadratic contact point semimetal: Theory and material realization, Physical Review B 98, 125104 (2018).
[14] Y. Liu*, Z.-M. Yu*, H. Jiang, and S. A. Yang, Goos-Hanchen-like shifts at a metal/superconductor interface, Physical Review B 98, 075151 (2018).
[15] X. Zhang, Z.-M. Yu#*, Y. Lu, X.-L. Sheng*, H. Yang*, and S. A. Yang, Hybrid nodal loop metal: Unconventional magnetoresponse and material realization, Physical Review B 97, 125143 (2018).
This work proposes the conditions for the existence of hybrid nodular semi-metals, predicts the real materials, and reveals the unique and singular magnetic response behavior contained therein.
[16] D.-S. Ma, Z.-M. Yu*, H. Pan, and Y. Yao*, Trigonal warping induced unusual spin texture and strong spin polarization in graphene with the Rashba effect, Physical Review B 97, 085416 (2018).
[17] Z.-M. Yu, D.-S. Ma#, H. Pan, and Y. Yao*, Double reflection and tunneling resonance in a topological insulator: Towards the quantification of warping strength by transport, Physical Review B 96, 125152 (2017).
[18] T.-T. Zhang, Z.-M. Yu*, W. Guo, D. Shi, G. Zhang*, and Y. Yao*, From type-II triply degenerate nodal points and three-band nodal rings to type-II Dirac points in centrosymmetric zirconium oxide, Journal of Physical Chemistry Letters 8, 5792 (2017).
[19] C. Chen, S.-S. Wang, L. Liu, Z.-M. Yu*, X.-L. Sheng*, Z. Chen, and S. A. Yang, Ternary wurtzite CaAgBi materials family: A playground for essential and accidental, type-I and type-II Dirac fermions, Physical Review Materials 1, 044201 (2017).
[20] Y. Liu, Z.-M. Yu*, and S. A. Yang*, Transverse shift in Andreev reflection, Physical Review B 96, 121101 (2017).
This paper shows for the first time that there is anomalous lateral displacement in Andreev reflection.
[21] D.-P. Liu, Z.-M. Yu*, and Y.-L. Liu*, Pure spin current and perfect valley filter by designed separation of the chiral states in two-dimensional honeycomb lattices, Physical Review B 94, 155112 (2016).
[22] Z. Yu, H. Pan, and Y. Yao*, Electric field controlled spin- and valley-polarized edge states in silicene with extrinsic Rashba effect, Physical Review B 92, 155419 (2015).