Atomic structure, stability, and dissociation of dislocations in cadmium telluride

J Li, K Luo, Q An - International Journal of Plasticity, 2023 - Elsevier
Dislocation plays a crucial role in many material properties of semiconductors, ranging from
plastic deformation to electronic transport. But the dislocation structures and reactions …

Room-temperature non-volatile optical manipulation of polar order in a charge density wave

Q Liu, D Wu, T Wu, S Han, Y Peng, Z Yuan… - Nature …, 2024 - nature.com
Utilizing ultrafast light-matter interaction to manipulate electronic states of quantum materials
is an emerging area of research in condensed matter physics. It has significant implications …

Light-induced ideal Weyl semimetal in HgTe via nonlinear phononics

D Shin, A Rubio, P Tang - Physical Review Letters, 2024 - APS
Interactions between light and matter allow the realization of out-of-equilibrium states in
quantum solids. In particular, nonlinear phononics is one of the most efficient approaches to …

Low-rank approximations to accelerate hybrid functional enabled real-time time-dependent density functional theory within plane waves

J Li, L Wan, S Jiao, W Hu, J Yang - Electronic Structure, 2023 - iopscience.iop.org
Real-time time-dependent density functional theory (RT-TDDFT) is a powerful tool for
predicting excited-state dynamics. Herein, we combine the adaptively compressed …

Suppression of shear ionic motions in bismuth by coupling with large-amplitude internal displacement

K Ishioka, OV Misochko - Physical Review B, 2024 - APS
Bismuth, with its rhombohedral crystalline structure and two Raman active phonon modes
corresponding to the internal displacement (A 1 g) and shear (E g) ionic motions, offers an …

Electron-phonon driven superconductivity in the novel A15 phase of the Ti–Te system under pressure

M Yang, X Wang, S Chen, B Cao, Y Wang, D Duan… - Materials Today …, 2024 - Elsevier
We investigate the high-pressure phase diagram of Ti–Te system using first-principles
calculations combined with evolutionary crystal structure prediction. Given the isostructural …

Direct observation of a photoinduced topological phase transition in Bi-doped (Pb, Sn) Se

M Mogi, D Choi, L Primeau, B Lv, D Azoury… - arXiv preprint arXiv …, 2024 - arxiv.org
Ultrafast photoexcitation offers a novel approach to manipulating quantum materials. One of
the long-standing goals in this field is to achieve optical control over topological properties …

Ultrafast Structural Transition and Electron-Phonon/Phonon-Phonon Coupling in Antimony Revealed by Nonadiabatic Molecular Dynamics

M Niu, SY Qin, BQ Wang, NK Chen… - Journal of Physics …, 2024 - iopscience.iop.org
Real-time time-dependent density-functional theory molecular dynamics (rt-TDDFT-MD)
reveals the nonadiabatic dynamics of the ultrafast photoinduced structural transition in a …

Coherent Phonons and Quasiparticle Renormalization in Semimetals from First Principles

C Emeis, S Jauernik, S Dahiya, Y Pan… - arXiv preprint arXiv …, 2024 - arxiv.org
Coherent phonons, light-induced coherent lattice vibrations in solids, provide a powerful
route to engineer structural and electronic degrees of freedom using light. In this manuscript …

Strong Nonlinear Optical Response and Transient Symmetry Switch in Type‐II Weyl Semimetal β‐WP2

T Hu, B Su, L Shi, Z Wang, L Yue, S Xu… - Advanced Optical …, 2023 - Wiley Online Library
Abstract The topological Weyl semimetals (WSMs) with peculiar band structures exhibit
novel nonlinear optical enhancement phenomena, even for light at optical wavelengths …