![Haiyao Deng](https://profiles-cardiff.imgix.net/attachments/3734?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Haiyao Deng
- Ar gael fel goruchwyliwr ôl-raddedig
Timau a rolau for Haiyao Deng
Darlithydd
Mater cyddwysedig a ffotoneg
Trosolwg
Cefais PhD o Brifysgol Polytechnig Hong Kong yn 2012 gyda thraethawd ymchwil mewn ferroelectrics. Yn ogystal â'r traethawd ymchwil, 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 ôl-ddoethurol 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, atseinyddion Josephson) a Manceinion (~ 1 flwyddyn, deunyddiau van der Waals), deuthum i Brifysgol Caerdydd fel Darlithydd yn 2019. Fel ffisegydd, rwy'n cael hwyl fawr yn darganfod gwaith Natur. Mae fy niddordebau ymchwil yn eang (gwiriwch fy nghyhoeddiadau), ar hyn o bryd yn canolbwyntio ar effeithiau ffiniau ffisegol, ynysyddion topolegol a systemau cymhleth (e.e. sbectol a rhwydweithiau), ac maent i gyd yn cyfrannu mewn un ffordd neu'r llall yn paentio darlun cydlynol o Natur i mi.
Cyhoeddiad
2026
- Lam, L. S. I. et al., 2026. Mobile-group dominated dynamics and sequence of mobility transitions in facilitated random walk model of glass. Soft Matter (10.1039/d6sm00435k)
2025
- Holmes, R. et al. 2025. Light scattering by spatially dispersive semiconducting cylinders. Journal of Optics 27 (11) 115601. (10.1088/2040-8986/ae1243)
- Lee, C. et al., 2025. Unified picture of structural relaxation, beta relaxation, and excess wing in glass formers. Physical Review E (statistical, nonlinear, biological, and soft matter physics) 112 (4) 045422. (10.1103/kx3x-c8n1)
- Lam, L. S. I. et al., 2025. Distinguishable-particle glassy crystal: The simplest molecular model of glass. The Journal of Chemical Physics 163 (2) 024505. (10.1063/5.0278498)
- Zhai, Q. et al., 2025. Penetration of surface effects on structural relaxation and particle hops in glassy films. The Journal of Chemical Physics 162 (23) 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) 044120. (10.1103/PhysRevE.111.044120)
- Zhai, Q. et al., 2025. Heat capacity and relaxation dynamics of glassy films: A lattice model study. Physical Review E 111 (1) 015406. (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) 054124. (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. et al., 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. et al. 2023. Surface scattering amplitude for a spatially dispersive model dielectric. Physical Review B (condensed matter and materials physics) 108 (24) 245302. (10.1103/PhysRevB.108.245302)
- Praill, S. et al., 2023. A theory of dynamical responses for metal films: surface roughness effects. Solids 4 (3), pp.268-286. (10.3390/solids4030017)
- He, Q. et al., 2023. Bound states at disclinations: an additive rule of real and reciprocal space topology. Frontiers in Physics 11 1213158. (10.3389/fphy.2023.1213158)
- Gao, X. et al., 2023. Kauzmann paradox: A possible crossover due to diminishing local excitations. Physical Review B 107 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) 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) 168002. (10.1103/PhysRevLett.129.168002)
- Gao, X. et al., 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) 044038. (10.1103/PhysRevApplied.16.044038)
- Lulli, M. et al., 2021. Kovacs effect in glass with material memory revealed in non-equilibrium particle interactions. Journal of Statistical Mechanics: Theory and Experiment 2021 (9) 093303. (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) 114109. (10.1063/5.0062708)
- Lee, C. et al., 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) 024131. (10.1103/PhysRevE.104.024131)
- Garcia-Ruiz, A. et al., 2021. Full Slonczewski-Weiss-McClure parametrization of few-layer twistronic graphene. Physical Review B 104 (8) 085402. (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. et al., 2020. Fragile glasses associated with a dramatic drop of entropy under supercooling. Physical Review Letters 125 (26-31) 265703. (10.1103/PhysRevLett.125.265703)
- Deng, H. 2020. A theory of electrodynamic response for bounded metals: surface capacitive effects. Annals of Physics 418 168204. (10.1016/j.aop.2020.168204)
- Deng, H. 2020. Electrostatic responses of anisotropic dielectric films. European Journal of Physics 41 (3) 035203. (10.1088/1361-6404/ab806c)
- Lulli, M. et al., 2020. Spatial heterogeneities in structural temperature cause Kovacs’ expansion gap paradox in aging of glasses. Physical Review Letters 124 (9) 095501. (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) 043055. (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) 086804. (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) 035442. (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) 455002. (10.1088/1361-648X/aa8e18)
Erthyglau
- Lam, L. S. I. et al., 2026. Mobile-group dominated dynamics and sequence of mobility transitions in facilitated random walk model of glass. Soft Matter (10.1039/d6sm00435k)
- Holmes, R. et al. 2025. Light scattering by spatially dispersive semiconducting cylinders. Journal of Optics 27 (11) 115601. (10.1088/2040-8986/ae1243)
- Lee, C. et al., 2025. Unified picture of structural relaxation, beta relaxation, and excess wing in glass formers. Physical Review E (statistical, nonlinear, biological, and soft matter physics) 112 (4) 045422. (10.1103/kx3x-c8n1)
- Lam, L. S. I. et al., 2025. Distinguishable-particle glassy crystal: The simplest molecular model of glass. The Journal of Chemical Physics 163 (2) 024505. (10.1063/5.0278498)
- Zhai, Q. et al., 2025. Penetration of surface effects on structural relaxation and particle hops in glassy films. The Journal of Chemical Physics 162 (23) 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) 044120. (10.1103/PhysRevE.111.044120)
- Zhai, Q. et al., 2025. Heat capacity and relaxation dynamics of glassy films: A lattice model study. Physical Review E 111 (1) 015406. (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) 054124. (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. et al., 2024. The distinguishable-particle lattice model of glasses in three dimensions. Soft Matter 20 (5), pp.1009-1017. (10.1039/D3SM01343J)
- Wink, S. M. et al. 2023. Surface scattering amplitude for a spatially dispersive model dielectric. Physical Review B (condensed matter and materials physics) 108 (24) 245302. (10.1103/PhysRevB.108.245302)
- Praill, S. et al., 2023. A theory of dynamical responses for metal films: surface roughness effects. Solids 4 (3), pp.268-286. (10.3390/solids4030017)
- He, Q. et al., 2023. Bound states at disclinations: an additive rule of real and reciprocal space topology. Frontiers in Physics 11 1213158. (10.3389/fphy.2023.1213158)
- Gao, X. et al., 2023. Kauzmann paradox: A possible crossover due to diminishing local excitations. Physical Review B 107 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) 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) 168002. (10.1103/PhysRevLett.129.168002)
- Gao, X. et al., 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) 044038. (10.1103/PhysRevApplied.16.044038)
- Lulli, M. et al., 2021. Kovacs effect in glass with material memory revealed in non-equilibrium particle interactions. Journal of Statistical Mechanics: Theory and Experiment 2021 (9) 093303. (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) 114109. (10.1063/5.0062708)
- Lee, C. et al., 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) 024131. (10.1103/PhysRevE.104.024131)
- Garcia-Ruiz, A. et al., 2021. Full Slonczewski-Weiss-McClure parametrization of few-layer twistronic graphene. Physical Review B 104 (8) 085402. (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. et al., 2020. Fragile glasses associated with a dramatic drop of entropy under supercooling. Physical Review Letters 125 (26-31) 265703. (10.1103/PhysRevLett.125.265703)
- Deng, H. 2020. A theory of electrodynamic response for bounded metals: surface capacitive effects. Annals of Physics 418 168204. (10.1016/j.aop.2020.168204)
- Deng, H. 2020. Electrostatic responses of anisotropic dielectric films. European Journal of Physics 41 (3) 035203. (10.1088/1361-6404/ab806c)
- Lulli, M. et al., 2020. Spatial heterogeneities in structural temperature cause Kovacs’ expansion gap paradox in aging of glasses. Physical Review Letters 124 (9) 095501. (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) 043055. (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) 086804. (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) 035442. (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) 455002. (10.1088/1361-648X/aa8e18)
Addysgu
PX2236: Cyflwyniad i Ffiseg Mater Cyddwys
PX3158 / PXT158: Ffiseg Ddamcaniaethol
PX4240 / PXT142: Ffiseg Gronynnau Uwch
Goruchwyliaeth prosiectau myfyrwyr Blwyddyn 3 a Blwyddyn 4:
- D. Brown a H.-Y. Deng, 'Effeithiau hydrodynamig ar y trosglwyddiad ynni o deupolau i slabiau metel', J. Chem. Phys. 115, 114109 (2021).
- Sam Praill, Charlotte Lawton, Hasan Balable a H.-Y. Deng, 'Theori ymatebion deinamig ar gyfer ffilmiau metel: Effeithiau garwedd arwyneb', Solidau 2023, 4(3), 268-286 (2023).
- S. M. Wink, E. Muljarov, W. Langbein a H.-Y. Deng, 'Osgled gwasgaru arwyneb ar gyfer dielectrig model gwasgaredig gofodol', Phys. Rev. B. 108, 245302 (2023).
- Alexander Clarkson, Chi-Hang Lam a H.-Y. Deng, 'Mynegiant dadansoddol ar gyfer y dosbarthiad amser pasio cyntaf a dosbarthiad taro mewn dau a thri dimensiwn', Am. J. Phys. 92, 299 (2024).
- Rhys Holmes, Amal Aldhubaib, Egor A Muljarov, Wolfgang Langbein a Hai-Yao Deng, 'Gwasgariad golau gan silindrau lled-ddargludol gwasgaredig gofodol', J. Opt. 27, 115601 (2025).
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 iawn i gael israddedigion ac ôl-raddedigion yn gweithio gyda mi yn y meysydd canlynol:
- Theori macrosgopig o effeithiau ffin (e.e. gwasgariad golau a gronynnau gyda metelau a lled-ddargludyddion)
- Ffiseg trawsnewidiadau gwydr a systemau cymhleth
- Chwistrellu metel
- Uwch-ddargludedd a magnetedd mewn systemau 2D (awyrennau CuO2, haenau atomig ...)
- Agweddau topolegol ar systemau ffisegol
Contact Details
[email protected]
+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