Sheng Meng Lab

Surface, Excitation, Energy 表面理论

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TDAP project

We are developing methods and softwares that are capable of simulating time-dependent phenomena in condensed matter with non-Born-Oppenheimer quantum electron-nucleus dynamics, for the sake of understanding fundamental properties of materials in (laser, electron, heat-driven) electronic excited states. The processes can be non-perturbative, non-equilibrium, and non-adabatic ...

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A nanotree with molecular leaves

Green plants have an extraordinary ability to harvest sunlights. Inspired by the beauty of the nature, we construct a smallest "tree" that ever exists: tiny TiO2 nanowires are interconnected in a way like tree branches, organic molecules with a sensible light-absorbing property self-assemble onto the surface of these branches serving as "molecular leaves". Photons from the Sun which strike onto these nanostructures could squeeze electrons, in turn, electricity, out of the nanotree.

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Twisting topology with light

The nonequilibrium electronic structures under a periodic field of laser can lead to intriguing topological optoelectronic properties. Under the irradiation of circularly polarized light, black phosphorus exhibits continuously tuned topological phase transition...

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A photoinduced quantum state

It is hidden in the dark, to whatever temperature you would heat it. It comes out only if what God would say, "Let there be light!" See a mysterious photoinduced state here ...

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Watch how a water molecule splits

Ultrafast electron-nuclear dynamics of water splitting on gold nanoparticles upon exposure to femtosecond laser pulses was directly simulated, where the changes in molecular orbitals of a single water molecule was uncovered for the first time...

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Invisible to proton

A new kind of membrane has been discovered, which is "transparent" for proton transport when immensed in water. It is more surprising that it does not conduct any other ions or molecules including water itself ...

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A new form of ice

The new ice structure identified by a joint theoretical and experimental effort exhibits an exceedingly high density (1.2 g/cm3, instead of 0.92 g/cm3 for ordinary ice Ih), which resembles the high-pressure phase ice-II, a stable phase of ice found at a pressure of 0.6 GPa

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Wetting at nanoscale

It seems rather simple to ask whether the arrangements of surface atoms of a crystal affect wetting? The answer however is not straightforward until now. Graduate student Chongqin Zhu finds a new type of wetting arises from lattice matching...

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A single-molecule transistor

The new transistor is as thin as a single molecule. Most interestingly, it can be easily gated by a chemical side group, via either electricity or light ...

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新闻 news

  • -03/1/2022 Mengxue and Xinbao's paper on optically controlled phase transition has been published in PRL. Congrats to Mengxue, Xinbao and coauthors!

  • -18/11/2021 Peiwei and Xuanyi has successfully defended their Ph.D. thesis. Congrats to Dr. Peiwei You and Dr. Xuanyi Li!

  • -15/8/2021 Peiwei's paper on nonadiabatic dynamics of water photosplitting on the surface of a polymeric semiconductor has been selected as a cover story in Nano Letters. Congrats to Peiwei and all coauthors!

  • -01/7/2021 Jiyu and Daqiang's paper on plasma generation in liquid water by intense laser illumination has been published in JACS. Congrats to Jiyu and Daqiang!

  • -25/3/2021 Mengxue and En's paper on tuning Weyl quasiparticle dynamics in WTe2 by laser has been published in Nature Communications. Many congrats to Mengxue and En!

  • -20/8/2020 After tremendous efforts by Prof. Liu and team members, the materials data web https://atomly.net is formly released! Check it out here...

  • -12/8/2020 Chao and Shiqi's paper on novel surface plasmon polaritons in borophene has been accepted in PRL. Congrats to Chao and Shiqi !

  • -01/7/2020 Shiqi's work on laser picoscopy by high harmonics generation in collaboration with the Rostock U. team is published in Nature. Also check the commentary in Nature

  • -02/1/2020 Happy new year! Chao's paper on exciton-phonon self-amplification induced charge order in TiSe2 is published in Nature Commun. Many congrats to Chao for this work and his continuous efforts in writing codes that enabled it!

  • -15/11/2019 Hang, Linan, and Jiyu have successfully defended their respective thesis. Congrats!

  • -31/8/2019 Jiyu's paper on transparent proton membrane is published in Nature Commun. Many congrats to Jiyu! Also the collaborative work with a germany group on optical resonance probe of water growth dynamics is published in Science Advances.

  • -12/7/2019 The lab welcomes a few new members from the Huairou campus: Daqiang Chen, Ruji Zhao, Zhengwei Nie, Tenglong Lu, Guanghui Cai, Qiuhao Xu, and Ze Yu. They will join the current workforce right away. Welcome!

  • -15/5/2019 The lab sees off Jin and Jian after their successful defence for Ph.D. degree. Jin moves to Max-Planck Institute for Structure and Dynamics of Matter at Hamburg and Jian moves to Shandong U.

  • -29/3/2019 Linan's paper on single-molecule transistors by side-group gating is published in Nature Commun. Congrats to Linan!

  • -21/12/2018 Jiyu's paper on 2D ice is published in PRL! It is a joint work with experimentalist reporting a new form of ice formed on graphite surface, which surprisingly resembles a high-pressure phase of ice. Congrats to Jiyu!

  • -10/12/2018 Dr. Cui Zhang joins the group as an associate professor. Cui's expertise lies in molecular dynamics and water science. Welcome Cui!

  • -16/11/2018 The group attends the annual examination meeting of the surface lab. Students present their research results and win several excellence prizes.

  • -12/11/2018 The first international symposium on ab initio electron dynamics simulations kicks off in Tsukuba, Japan. The event is jointly lanched by Prof. Yabana, Prof. Otobe, and Prof. Meng. Shiqi, Shengjie, Lei, and Prof. Meng deliver invited talks at the meeting.

  • -15/8/2018 The SF10 group welcomes new students Huaxia Jia, Chenchen Song, En Wang from UCAS Huairou campus as Ph.D. candidates. Welcome!

  • -10/6/2018 Prof. Meng and Prof. Jin ZHao of USTC coorganize the first workshop on excited state dynamics in condensed matter physics. The workshop attracts 100+ attendents with a big success.

  • -01/6/2018 Congrats to Hang for his work on photoinduced nonequilibrium states in black phosphorus published in PRL!

  • -31/3/2018 The group members run a 5-km mini-Marathon and spend a day in the Olympic Forest Park. Everybody enjoys.

  • -05/3/2018 The group welcomes Dr. Miao Liu from Berkeley Lab joining the group as Hundred Talent Professor. Welcome Miao!

  • -03/1/2018 Happy the year of dog!

  • more...

资料 documents

  • 我们的使命 Mission
  • 我们的信念 Our beliefs
  • 实验室文化 Culture in the Lab
  • 教育 School of creative thinking & professionalism
  • 程序 TDAP project (RT-TDDFT)
  • 材料基因 Atomly@IOP
  • 创新工场 SurfaceX

链接 links

  • 中国科学院物理研究所 IOP-CAS
  • 物理所图书馆 IOP-CAS Lib
  • ISI Web of Knowledge
  • 国家科学图书馆Nat'l Sci Library
  • 中国科学院 Chin. Acad. Sci.

 

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