92 citations · 294 across the 15 of their papers we have counts for
15 papers
Coherent phonons in photoexcited semiconductors from first principles
Yuhui Qiu, Rong-Tian Pang, Meng-Xue Guan +1
Coherent phonons are phase-locked lattice vibrations that provide a sensitive probe of nonequilibrium dynamics in materials. Existing first-principles equation-of-motion (EOM) appr…
Robust and tunable Floquet altermagnets in sliding A-type antiferromagnetic bilayers
Zhe Li, Lijuan Li, Mengxue Guan +1
Arranging the stacking orders of A-type antiferromagnetic (A-AFM) bilayers offers a practical pathway to realizing two-dimensional altermagnets. Previous proposals, however, rely o…
Floquet-engineered Valley Topology with Anisotropic Response in 1T'-WSe and Janus WSeTe monolayers
Zhe Li, Haijun Cao, Lijuan Li +3
Valley topology has emerged as a key concept for realizing new classes of quantum states. Here, we investigate Floquet-engineered topological phase transitions in anisotropic 1T'-W…
Photoexcitation-induced Stacking Transition Assisted by Intralayer Reconstruction in Charge-Density-Wave Materials
Jin Zhang, Yang Yang, Jia Zhang +5
Laser excitation has emerged as an effective tool for probing microscopic interactions and manipulating phases of matter. Among charge density wave (CDW) materials, 1T-TaS2 has gar…
Optimizing attosecond pulse generation in solids by modulating electronic dynamics with monochromatic laser field
Xinyuan Zhang, Shiqi Hu, Mengxue Guan +1
A practical approach is proposed for efficiently generating ultrashort attosecond pulses (APs) from realistic solid-state materials, aiming to optimize pulse width effectively. By…
Nonvolatile optical control of interlayer stacking order in 1T-TaS2
Junde Liu, Pei Liu, Liu Yang +19
Nonvolatile optical manipulation of material properties on demand is a highly sought-after feature in the advancement of future optoelectronic applications. While the discovery of…
Traversing double-well potential energy surfaces: photoinduced concurrent intralayer and interlayer structural transitions in XTe2 (X=Mo, W)
Yingpeng Qi, Mengxue Guan, Daniela Zahn +6
Manipulating crystal structure and the corresponding electronic properties in quantum materials provides opportunities for the exploration of exotic physics and practical applicati…
Creation of a novel inverted charge density wave state
Yingchao Zhang, Xun Shi, Mengxue Guan +10
Charge density wave (CDW) order is an emergent quantum phase that is characterized by a periodic lattice distortion and charge density modulation, often present near superconductin…
Manipulating Weyl quasiparticles by orbital-selective photoexcitation in WTe2
Meng-Xue Guan, En Wang, Pei-Wei You +2
Optical control of structural and electronic properties of Weyl semimetals allows development of switchable and dissipationless topological devices at the ultrafast scale. An unexp…
Visualizing molecular orientational ordering and electronic structure in CsnC60 fulleride films
Sha Han, Meng-Xue Guan, Can-Li Song +5
Alkali-doped fullerides exhibit a wealth of unusual phases that remain controversial by nature. Here we report a cryogenic scanning tunneling microscopy study of the sub-molecular…
Cooperative evolution of intraband and interband excitations for high harmonic generation in strained MoS2
Meng-Xue Guan, Chao Lian, Shi-Qi Hu +4
Modulating electronic structure of two-dimensional (2D) materials represents an exciting avenue for tailoring their optoelectronic properties. Here, we identify a strain-induced, c…
Ultrafast charge ordering by self-amplified exciton-phonon dynamics in TiSe
Chao Lian, Sheng-Jie Zhang, Shi-Qi Hu +2
The origin of charge density waves (CDW) in TiSe has long been debated, mainly due to the difficulties in identifying the timescales of how and when the excitonic pairing and e…
Study of electron emission from 1D nanomaterials under super high field
Chi Li, Ke Chen, Mengxue Guan +9
Photoemission driven by a strong electric field of near-infrared or visible light, referred to as strong-field photoemission, produces attosecond electron pulses that are synchroni…
Photoexcitation Induced Quantum Dynamics of Charge Density Wave and Emergence of a Collective Mode in 1T-TaS
Jin Zhang, Chao Lian, Mengxue Guan +3
Photoexcitation is a powerful means in distinguishing different interactions and manipulating the states of matter, especially in complex quantum systems. As a well-known charge de…
Momentum-resolved TDDFT algorithm in atomic basis for real time tracking of electronic excitation
Chao Lian, Shi-Qi Hu, Meng-Xue Guan +1
Ultrafast electronic dynamics in solids lies at the core of modern condensed matter and materials physics. To build up a practical ab initio method for studying solids under photoe…