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laser polarization-dependent magnetization and spin dynamics in altermagnets
Ultrafast dynamics in unconventional magnets
Ultrafast dynamics in unconventional magnets
Using real-time TDDFT, our research focuses on laser-driven electron, spin, and phonon dynamics in unconventional magnetic systems, with particular emphasis on altermagnets.
Zhou, Z., Sharma, S. Dewhurst, J.K., and He, J., Magnetizing altermagnets by ultrafast asymmetric spin dynamics. arXiv preprint arXiv:2502.01258. (2025) https://arxiv.org/abs/2502.01258
Zhou, Z., Sharma, S., He, J., Zhou, Z., Sharma, S., He, J., Ultrafast all-optical control of magnetization in g-wave altermagnet CrSb. Physical Review B, 113, 064434, 2026. https://arxiv.org/abs/2509.14991
Zhou, Z. and He, J., Ultrafast Spin Dynamics beyond s-Wave Magnets: A Universal Polarization Dependence. Nano Letters, 25(44),15978-15984 (2025).
Carriers and energy relaxation dynamics
Carriers and energy relaxation dynamics
We have applied ab initio non-adiabatic molecular dynamics (NAMD) with surface hopping in the hot carrier and spin relaxation dynamics in various systems, including Perovskite, 2D magnetic materials, and heterostructures. See paper:
Nano Lett., 2023, 23, 8348-8354.; J. Am. Chem. Soc., 2022, 144, 18126-18134.; J. Am. Chem. Soc., 2024, 146, 29905-29912; Nano Lett., 2023, 23, 5688–5695; J. Phys. Chem. Lett.,13, 4955-4962 (2022)
Laser induced dynamics in 2D systems
Laser induced dynamics in 2D systems
We have applied real-time TDDFT coupled with Ehrenfest dynamics in interlayer/intralayer spin transfer and spin-phonon dynamics in 2D magnets and vdW heterostructures. (motivated by my DFG project: 448002124); See paper:
Nano Lett. 24, 12062-12069 (2024); J. Phys. Chem. Lett., 11, 6219-6226 (2020); Nano Lett. 2021, 21, 3237−3244; J. Phys. Chem. Lett. 2022, 13, 2765−2771; J. Phys. Chem. Lett. 2023, 14, 11274−11280; J. Phys. Chem. Lett. 2024, 15, 2493−2498; ACS Nano 2024, 18, 11732−11739; J. Phys. Chem. Lett. 2024, 15, 5939−5946;
2D magnets and related quantum properties
2D magnets and related quantum properties
We mainly applied DFT methods combined with an atomistic spin model and Wannier techniques to identify the new 2D magnets and its related quantum properties, such as Chern insulator and Valley polarization. See paper:
Nanoscale 9 (6), 2246-2252, (2017). (Citation>150); Nanoscale, 2023,15, 16992-16997; J. Mater. Chem. C, 2021, 9, 11132-11141; J. Mater. Chem. C, 2016, 4, 2518-2526. (citation >250); J. Mater. Chem. C, 2016, 4, 11143-11149; (citation >200) J. Mater. Chem. C, 2016, 4, 6500-6509. (citation >160); Nanoscale, 2019, 11, 356-364. (citation >140);
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