![Haiyao Deng](https://profiles-cardiff.imgix.net/attachments/3734?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Haiyao Deng
Darlithydd
Mater cyddwysedig a ffotoneg
- Ar gael fel goruchwyliwr ôl-raddedig
Trosolwyg
Derbyniais PhD o Brifysgol Polytechnig Hong Kong yn 2012 gyda thesis mewn ferroelectrics. Ar wahân i thesis, gweithiais hefyd ar bynciau fel uwch-ddargludyddion tymheredd uchel a dynameg polymer yn ogystal â systemau cwantwm agored. Yn fuan ar ôl cael PhD, ymunais â'r Sefydliad Cenedlaethol ar gyfer Gwyddor Deunyddiau (NIMS) yn Tsukuba, Japan fel dogfen bost yn gwneud ymchwil ar systemau graphene, lle dyfarnwyd cymrodoriaeth dwy flynedd i mi gan Gymdeithas Japan ar gyfer Hyrwyddo Gwyddoniaeth (JSPS). Ar ôl treulio peth amser yng Nghaerwysg (~ 3 blynedd, cyseinyddion Josephson) a Manceinion (~ 1 flwyddyn, deunyddiau van der Waals), deuthum i Brifysgol Caerdydd fel Darlithydd yn 2019. Fel ffisegydd, rwy'n cael llawer o hwyl wrth ddarganfod sut mae natur yn gweithio. Mae fy niddordebau ymchwil yn eang (gwiriwch fy nghyhoeddiadau), sy'n canolbwyntio ar hyn o bryd ar effeithiau ffiniau corfforol, ynysyddion topolegol a systemau cymhleth (e.e. sbectol a rhwydweithiau), ac maent i gyd yn cyfrannu mewn un ffordd neu'r llall wrth baentio darlun cydlynol o Natur i mi.
Cyhoeddiad
2025
- Zhai, Q., Deng, H., Gao, X., Lam, L. S. I., Yang, S., Yan, K. and Lam, C. 2025. Penetration of surface effects on structural relaxation and particle hops in glassy films. The Journal of Chemical Physics 162(23), article number: 234502. (10.1063/5.0271966)
- Lam, L. S. I. et al. 2025. Emergent facilitation by random constraints in a facilitated random walk model of glass. Physical Review E (statistical, nonlinear, biological, and soft matter physics) 111(4), article number: 44120. (10.1103/PhysRevE.111.044120)
- 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., Deng, H., Gao, X., Lam, L. S. I., Yang, S., Yan, K. and Lam, C. 2025. Penetration of surface effects on structural relaxation and particle hops in glassy films. The Journal of Chemical Physics 162(23), article number: 234502. (10.1063/5.0271966)
- Lam, L. S. I. et al. 2025. Emergent facilitation by random constraints in a facilitated random walk model of glass. Physical Review E (statistical, nonlinear, biological, and soft matter physics) 111(4), article number: 44120. (10.1103/PhysRevE.111.044120)
- 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)
Addysgu
PX2236: Cyflwyniad i Ffiseg Mater Cyddwysedig
PX3158 / PXT158: Ffiseg Ddamcaniaethol
PX4240 / PXT142: Ffiseg Gronynnau Uwch
Mae nodiadau darlith (mewn pdf) ar gyfer y ddau gwrs ar gael ar gais.
Mae prosiectau myfyrwyr Blwyddyn 3 a Blwyddyn 4 yn goruchwylio:
- D. Brown a H.Y. Deng, 'Effeithiau hydrodynamig ar y trosglwyddiad ynni o ddeupolau i slabiau metel', J. Chem. Phys. 115, 114109 (2021).
- Sam Praill, Charlotte Lawton, Hasan Balable a 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 a H.-Y. Deng, 'Arwyneb gwasgariad osgled ar gyfer dielectric model gwasgarol gofodol', Phys. Parch B. 108, 245302 (2023).
- Alexander Clarkson, Chi-Hang Lam a H.Y. Deng, 'Mynegiadau dadansoddol ar gyfer dosbarthu amser y darn cyntaf a dosbarthiad taro mewn dau a thri dimensiwn', Am. J. Phys. 92, 299 (2024).
Bywgraffiad
2019 - presennol, Prifysgol Caerdydd, Darlithydd.
2019 - 2019, Prifysgol Manceinion, Cydymaith Ymchwil.
2016 - 2018, Prifysgol Exeter, Cymrawd Ymchwil Cysylltiol.
2013 - 2015, Sefydliad Cenedlaethol ar gyfer Gwyddor Deunyddiau, Tsukuba, Japan, Ymchwilydd Ôl-ddoethurol.
2008 - 2012, Prifysgol Polytechnig Hong Kong, PhD.
Meysydd goruchwyliaeth
Rwy'n tueddu i gael israddedigion ac ôl-raddedigion yn gweithio gyda mi yn y meysydd canlynol:
- Theori macrosgopig o effeithiau ffiniau (e.e. golau a gronynnau gwasgaru â metelau a lled-ddargludyddion)
- Ffiseg trawsnewidiadau gwydr a systemau cymhleth
- Wisgi metel
- Uwchddargludedd a magnetedd mewn systemau 2D (awyrennau CuO2, haenau atomig...)
- Agweddau topolegol ar systemau ffisegol
Ysgoloriaeth wedi'i hariannu'n llawn: https://www.findaphd.com/phds/project/demystifying-metal-whiskering/?p174164
Cysylltwch â mi yn uniongyrchol os oes gennych ddiddordeb.
Contact Details
DengH4@caerdydd.ac.uk
+44 29225 10180
Adeiladau'r Frenhines - Adeilad y Gogledd, Ystafell WX/1.09, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA
+44 29225 10180
Adeiladau'r Frenhines - Adeilad y Gogledd, Ystafell WX/1.09, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA