92 citations · 294 across the 15 of their papers we have counts for
8 papers · 1 filter
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…
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…
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…
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…