![Haiyao Deng](https://profiles-cardiff.imgix.net/attachments/3734?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Haiyao Deng
Lecturer
Condensed Matter and Photonics
- Available for postgraduate supervision
Overview
I received a PhD from The Hong Kong Polytechnic University in 2012 with a thesis in ferroelectrics. Beside thesis, I also worked on subjects such as high temperature superconductors and polymer dynamics as well as open quantum systems. Shortly after obtaining PhD, I joined National Institute for Materials Science (NIMS) in Tsukuba, Japan as a post doc doing research on graphene systems, where I was awarded a two-year fellowship by the Japan Society for the Promotion of Science (JSPS). After spending some time in Exeter (~ 3 years, Josephson resonators) and Manchester (~ 1 year, van der Waals materials), I came to Cardiff University as a Lecturer in 2019. As a physicist, I have great fun in finding out the workings of Nature. My research interests are broad (check my publications), currently focused on physical boundary effects, topological insulators and complex systems (e.g. glasses and networks), and they all contribute in one way or another in painting a coherent picture of Nature for me.
Publication
2025
- Zhai, Q., Gao, X., Deng, H., Lee, C., Yang, S., Yan, K. and Lam, C. 2025. Heat capacity and relaxation dynamics of glassy films: A lattice model study. Physical Review E 111(1), article number: 15406. (10.1103/PhysRevE.111.015406)
2024
- Zhai, Q. et al. 2024. Surface mobility gradient and emergent facilitation in glassy films. Soft Matter 20(22), pp. 4389-4394. (10.1039/D4SM00221K)
- Zhai, Q. et al. 2024. Correction: Surface mobility gradient and emergent facilitation in glassy films. Soft Matter (10.1039/d4sm90083a)
- Ong, C. et al. 2024. Relating fragile-to-strong transition to fragile glass via lattice model simulations. Physical review E (statistical, nonlinear, biological, and soft matter physics) 109(5), article number: 54124. (10.1103/PhysRevE.109.054124)
- Clarkson, A., Lam, C. and Deng, H. 2024. Analytical expressions for the first passage time distribution and hit distribution in two and three dimensions. American Journal of Physics 92(4), pp. 299–307. (10.1119/5.0121165)
- Li, B., Lee, C., Gao, X., Deng, H. and Lam, C. 2024. The distinguishable-particle lattice model of glasses in three dimensions. Soft Matter 20(5), pp. 1009-1017. (10.1039/D3SM01343J)
2023
- Wink, S. M., Muljarov, E. A., Langbein, W. and Deng, H. 2023. Surface scattering amplitude for a spatially dispersive model dielectric. Physical Review B (condensed matter and materials physics) 108(24), article number: 245302. (10.1103/PhysRevB.108.245302)
- Praill, S., Lawton, C., Balable, H. and Deng, H. 2023. A theory of dynamical responses for metal films: surface roughness effects. Solids 4(3), pp. 268-286. (10.3390/solids4030017)
- He, Q., Sun, J., Deng, H., Wakabayashi, K. and Liu, F. 2023. Bound states at disclinations: an additive rule of real and reciprocal space topology. Frontiers in Physics 11, article number: 1213158. (10.3389/fphy.2023.1213158)
- Gao, X., Ong, C., Lee, C., Yip, C., Deng, H. and Lam, C. 2023. Kauzmann paradox: A possible crossover due to diminishing local excitations. Physical Review B 107, article number: 174206. (10.1103/PhysRevB.107.174206)
2022
- Deng, H. and Muljarov, E. A. 2022. Scattering solution to the problem of additional boundary conditions. Physical Review B 106(19), article number: 195301. (10.1103/PhysRevB.106.195301)
- Gopinath, G. et al. 2022. Diffusion-coefficient power laws and defect-driven glassy dynamics in swap acceleration. Physical Review Letters 129(16), article number: 168002. (10.1103/PhysRevLett.129.168002)
- Gao, X., Deng, H., Lee, C., You, J. and Lam, C. 2022. Emergence of two-level systems in glass formers: a kinetic Monte Carlo study. Soft Matter 11, pp. 2211-2221. (10.1039/D1SM01809D)
2021
- Deng, H. 2021. Near-infrared quantum cascade lasers designed with van der Waals materials. Physical Review Applied 16(4), article number: 44038. (10.1103/PhysRevApplied.16.044038)
- Lulli, M., Lee, C., Zhang, L., Deng, H. and Lam, C. 2021. Kovacs effect in glass with material memory revealed in non-equilibrium particle interactions. Journal of Statistical Mechanics: Theory and Experiment 2021(9), article number: 93303. (10.1088/1742-5468/ac1f26)
- Brown, D. and Deng, H. 2021. Hydrodynamic effects on the energy transfer from dipoles to metal slab. The Journal of Chemical Physics 155(11), article number: 114109. (10.1063/5.0062708)
- Lee, C., Deng, H., Yip, C. and Lam, C. 2021. Large heat-capacity jump in cooling-heating of fragile glass from kinetic Monte Carlo simulations based on a two-state picture. Physical Review E 104(2), article number: 24131. (10.1103/PhysRevE.104.024131)
- Garcia-Ruiz, A., Deng, H., Enaldiev, V. V. and Fal'ko, V. I. 2021. Full Slonczewski-Weiss-McClure parametrization of few-layer twistronic graphene. Physical Review B 104(8), article number: 85402. (10.1103/PhysRevB.104.085402)
- Deng, H. 2021. On the electrical conductivity of metals with a rough surface. Philosophical Magazine 101(6), pp. 729-752. (10.1080/14786435.2020.1862428)
2020
- Lee, C., Lulli, M., Zhang, L., Deng, H. and Lam, C. 2020. Fragile glasses associated with a dramatic drop of entropy under supercooling. Physical Review Letters 125(26-31), article number: 265703. (10.1103/PhysRevLett.125.265703)
- Deng, H. 2020. A theory of electrodynamic response for bounded metals: surface capacitive effects. Annals of Physics 418, article number: 168204. (10.1016/j.aop.2020.168204)
- Deng, H. 2020. Electrostatic responses of anisotropic dielectric films. European Journal of Physics 41(3), article number: 35203. (10.1088/1361-6404/ab806c)
- Lulli, M., Lee, C., Deng, H., Yip, C. and Lam, C. 2020. Spatial heterogeneities in structural temperature cause Kovacs’ expansion gap paradox in aging of glasses. Physical Review Letters 124(9), article number: 95501. (10.1103/PhysRevLett.124.095501)
2019
- Deng, H. 2019. A universal macroscopic theory of surface plasma waves and their losses. New Journal of Physics 21(4), article number: 43055. (10.1088/1367-2630/ab13eb)
- Liu, F., Deng, H. and Wakabayashi, K. 2019. Helical topological edge states in a quadrupole phase. Physical Review Letters 122(8), article number: 86804. (10.1103/PhysRevLett.122.086804)
2018
- Liu, F., Deng, H. and Wakabayashi, K. 2018. Topological photonic crystals with zero Berry curvature. Physical Review B 97(3), article number: 35442. (10.1103/PhysRevB.97.035442)
2017
- Deng, H. 2017. Possible instability of the Fermi sea against surface plasma oscillations. Journal of Physics: Condensed Matter 29(45), article number: 455002. (10.1088/1361-648X/aa8e18)
Articles
- Zhai, Q., Gao, X., Deng, H., Lee, C., Yang, S., Yan, K. and Lam, C. 2025. Heat capacity and relaxation dynamics of glassy films: A lattice model study. Physical Review E 111(1), article number: 15406. (10.1103/PhysRevE.111.015406)
- Zhai, Q. et al. 2024. Surface mobility gradient and emergent facilitation in glassy films. Soft Matter 20(22), pp. 4389-4394. (10.1039/D4SM00221K)
- Zhai, Q. et al. 2024. Correction: Surface mobility gradient and emergent facilitation in glassy films. Soft Matter (10.1039/d4sm90083a)
- Ong, C. et al. 2024. Relating fragile-to-strong transition to fragile glass via lattice model simulations. Physical review E (statistical, nonlinear, biological, and soft matter physics) 109(5), article number: 54124. (10.1103/PhysRevE.109.054124)
- Clarkson, A., Lam, C. and Deng, H. 2024. Analytical expressions for the first passage time distribution and hit distribution in two and three dimensions. American Journal of Physics 92(4), pp. 299–307. (10.1119/5.0121165)
- Li, B., Lee, C., Gao, X., Deng, H. and Lam, C. 2024. The distinguishable-particle lattice model of glasses in three dimensions. Soft Matter 20(5), pp. 1009-1017. (10.1039/D3SM01343J)
- Wink, S. M., Muljarov, E. A., Langbein, W. and Deng, H. 2023. Surface scattering amplitude for a spatially dispersive model dielectric. Physical Review B (condensed matter and materials physics) 108(24), article number: 245302. (10.1103/PhysRevB.108.245302)
- Praill, S., Lawton, C., Balable, H. and Deng, H. 2023. A theory of dynamical responses for metal films: surface roughness effects. Solids 4(3), pp. 268-286. (10.3390/solids4030017)
- He, Q., Sun, J., Deng, H., Wakabayashi, K. and Liu, F. 2023. Bound states at disclinations: an additive rule of real and reciprocal space topology. Frontiers in Physics 11, article number: 1213158. (10.3389/fphy.2023.1213158)
- Gao, X., Ong, C., Lee, C., Yip, C., Deng, H. and Lam, C. 2023. Kauzmann paradox: A possible crossover due to diminishing local excitations. Physical Review B 107, article number: 174206. (10.1103/PhysRevB.107.174206)
- Deng, H. and Muljarov, E. A. 2022. Scattering solution to the problem of additional boundary conditions. Physical Review B 106(19), article number: 195301. (10.1103/PhysRevB.106.195301)
- Gopinath, G. et al. 2022. Diffusion-coefficient power laws and defect-driven glassy dynamics in swap acceleration. Physical Review Letters 129(16), article number: 168002. (10.1103/PhysRevLett.129.168002)
- Gao, X., Deng, H., Lee, C., You, J. and Lam, C. 2022. Emergence of two-level systems in glass formers: a kinetic Monte Carlo study. Soft Matter 11, pp. 2211-2221. (10.1039/D1SM01809D)
- Deng, H. 2021. Near-infrared quantum cascade lasers designed with van der Waals materials. Physical Review Applied 16(4), article number: 44038. (10.1103/PhysRevApplied.16.044038)
- Lulli, M., Lee, C., Zhang, L., Deng, H. and Lam, C. 2021. Kovacs effect in glass with material memory revealed in non-equilibrium particle interactions. Journal of Statistical Mechanics: Theory and Experiment 2021(9), article number: 93303. (10.1088/1742-5468/ac1f26)
- Brown, D. and Deng, H. 2021. Hydrodynamic effects on the energy transfer from dipoles to metal slab. The Journal of Chemical Physics 155(11), article number: 114109. (10.1063/5.0062708)
- Lee, C., Deng, H., Yip, C. and Lam, C. 2021. Large heat-capacity jump in cooling-heating of fragile glass from kinetic Monte Carlo simulations based on a two-state picture. Physical Review E 104(2), article number: 24131. (10.1103/PhysRevE.104.024131)
- Garcia-Ruiz, A., Deng, H., Enaldiev, V. V. and Fal'ko, V. I. 2021. Full Slonczewski-Weiss-McClure parametrization of few-layer twistronic graphene. Physical Review B 104(8), article number: 85402. (10.1103/PhysRevB.104.085402)
- Deng, H. 2021. On the electrical conductivity of metals with a rough surface. Philosophical Magazine 101(6), pp. 729-752. (10.1080/14786435.2020.1862428)
- Lee, C., Lulli, M., Zhang, L., Deng, H. and Lam, C. 2020. Fragile glasses associated with a dramatic drop of entropy under supercooling. Physical Review Letters 125(26-31), article number: 265703. (10.1103/PhysRevLett.125.265703)
- Deng, H. 2020. A theory of electrodynamic response for bounded metals: surface capacitive effects. Annals of Physics 418, article number: 168204. (10.1016/j.aop.2020.168204)
- Deng, H. 2020. Electrostatic responses of anisotropic dielectric films. European Journal of Physics 41(3), article number: 35203. (10.1088/1361-6404/ab806c)
- Lulli, M., Lee, C., Deng, H., Yip, C. and Lam, C. 2020. Spatial heterogeneities in structural temperature cause Kovacs’ expansion gap paradox in aging of glasses. Physical Review Letters 124(9), article number: 95501. (10.1103/PhysRevLett.124.095501)
- Deng, H. 2019. A universal macroscopic theory of surface plasma waves and their losses. New Journal of Physics 21(4), article number: 43055. (10.1088/1367-2630/ab13eb)
- Liu, F., Deng, H. and Wakabayashi, K. 2019. Helical topological edge states in a quadrupole phase. Physical Review Letters 122(8), article number: 86804. (10.1103/PhysRevLett.122.086804)
- Liu, F., Deng, H. and Wakabayashi, K. 2018. Topological photonic crystals with zero Berry curvature. Physical Review B 97(3), article number: 35442. (10.1103/PhysRevB.97.035442)
- Deng, H. 2017. Possible instability of the Fermi sea against surface plasma oscillations. Journal of Physics: Condensed Matter 29(45), article number: 455002. (10.1088/1361-648X/aa8e18)
- Gao, X., Deng, H., Lee, C., You, J. and Lam, C. 2022. Emergence of two-level systems in glass formers: a kinetic Monte Carlo study. Soft Matter 11, pp. 2211-2221. (10.1039/D1SM01809D)
Teaching
PX2236: Introduction to Condensed Matter Physics
PX3158/PXT158: Theoretical Physics
PX4240/PXT142: Advanced Particle Physics
Lecture notes (in pdf) for both courses are available upon request.
Year-3 and Year-4 student projects supervision:
- D. Brown and H.-Y. Deng, 'Hydrodynamic effects on the energy transfer from dipoles to metal slab', J. Chem. Phys. 115, 114109 (2021).
- Sam Praill, Charlotte Lawton, Hasan Balable and H.-Y. Deng, 'A theory of dynamical responses for metal films: Surface roughness effects', Solids 2023, 4(3), 268-286 (2023).
- S. M. Wink, E. Muljarov, W. Langbein and H.-Y. Deng, 'Surface scattering amplitude for a spatially dispersive model dielectric', Phys. Rev. B. 108, 245302 (2023).
- Alexander Clarkson, Chi-Hang Lam and H.-Y. Deng, 'Analytical expressions for the first passage time distribution and hit distribution in two and three dimensions', Am. J. Phys. 92, 299 (2024).
Biography
2019 - present, Cardiff University, Lecturer.
2019 - 2019, The University of Manchester, Research Associate.
2016 - 2018, University of Exeter, Associate Research Fellow.
2013 - 2015, National Institute for Materials Science, Tsukuba, Japan, Postdoctoral Researcher.
2008 - 2012, Hong Kong Polytechnic University, PhD.
Supervisions
I'm strongly inclined to have undergrads and postgraduates working with me in the following areas:
- Macroscopic theory of boundary effects (e.g. light and particle scattering with metals and semiconductors)
- Physics of glass transitions and complex systems
- Metal whiskering
- Superconductivity & magnetism in 2D systems (CuO2 planes, atomic layers...)
- Topological aspects of physical systems
Fully funded studentship: https://www.findaphd.com/phds/project/demystifying-metal-whiskering/?p174164
Please contact me directly if you are interested.
Contact Details
DengH4@cardiff.ac.uk
+44 29225 10180
Queen's Buildings - North Building, Room WX/1.09, 5 The Parade, Newport Road, Cardiff, CF24 3AA
+44 29225 10180
Queen's Buildings - North Building, Room WX/1.09, 5 The Parade, Newport Road, Cardiff, CF24 3AA