![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
Trosolwyg
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
2025
- Lam, L. S. I. et al. 2025. Distinguishable-particle glassy crystal: The simplest molecular model of glass. The Journal of Chemical Physics 163(2), article number: 24505. (10.1063/5.0278498)
- 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)
Erthyglau
- Lam, L. S. I. et al. 2025. Distinguishable-particle glassy crystal: The simplest molecular model of glass. The Journal of Chemical Physics 163(2), article number: 24505. (10.1063/5.0278498)
- 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 Cyddwyso
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 drosglwyddo ynni o deupolau i slab 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 wyneb ar gyfer model gwasgaru gofodol dielectrig', Phys. Rev. B. 108, 245302 (2023).
- Alexander Clarkson, Chi-Hang Lam a 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).
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
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