75 citations · 237 across the 10 of their papers we have counts for
10 papers
Magnon-phonon interactions from first principles
Khoa B. Le, Ali Esquembre-Kucukalic, Hsiao-Yi Chen +6
Modeling spin-wave (magnon) dynamics in novel materials is important to advance spintronics and spin-based quantum technologies. The interactions between magnons and lattice vibrat…
First-Principles Ultrafast Exciton Dynamics and Time-Domain Spectroscopies: Dark-Exciton Mediated Valley Depolarization in Monolayer WSe
Hsiao-Yi Chen, Marco Bernardi
Calculations combining first-principles electron-phonon (-ph) interactions with the Boltzmann equation enable studies of ultrafast carrier and phonon dynamics. However, in mater…
Development of method for exciton condensation and its application to
Hsiao-Yi Chen, Takuya Nomoto, Ryotaro Arita
Exciton condensation indicating the spontaneous formation of electron-hole pair can cause the phase transition from a semimetal to an excitonic insulator by gap opening at the Ferm…
Dark Matter Direct Detection in Materials with Spin-Orbit Coupling
Hsiao-Yi Chen, Andrea Mitridate, Tanner Trickle +3
Semiconductors with band gaps have been shown to be promising targets to search for sub-MeV mass dark matter (DM). In this paper we focus on a class of ma…
Facile ab initio approach for self-localized polarons from canonical transformations
Nien-En Lee, Hsiao-Yi Chen, Jin-Jian Zhou +1
Electronic states in a crystal can localize due to strong electron-phonon (e-ph) interactions, forming so-called small polarons. Methods to predict the formation and energetics of…
Radiative properties of quantum emitters in boron nitride from excited state calculations and Bayesian analysis
Shiyuan Gao, Hsiao-Yi Chen, Marco Bernardi
Point defects in hexagonal boron nitride (hBN) have attracted growing attention as bright single-photon emitters. However, understanding of their atomic structure and radiative pro…
Precise Radiative Lifetimes in Bulk Crystals from First Principles: The Case of Wurtzite GaN
Vatsal A. Jhalani, Hsiao-Yi Chen, Maurizia Palummo +1
Gallium nitride (GaN) is a key semiconductor for solid-state lighting, but its radiative processes are not fully understood. Here we show a first-principles approach to accurately…
Next-to-Leading Order Ab Initio Electron-Phonon Scattering
Nien-En Lee, Jin-Jian Zhou, Hsiao-Yi Chen +1
Electron-phonon (e-ph) interactions are usually treated in the lowest order of perturbation theory. Here we derive next-to-leading order e-ph interactions, and compute from first p…
Ab Initio Calculations of Exciton Radiative Lifetimes in Bulk Crystals, Nanostructures and Molecules
Hsiao-Yi Chen, Vatsal A. Jhalani, Maurizia Palummo +1
Excitons are bound electron-hole pairs that dominate the optical response of semiconductors and insulators, especially in materials where the Coulomb interaction is weakly screened…
Theory and Ab Initio Computation of the Anisotropic Light Emission in Monolayer Transition Metal Dichalcogenides
Hsiao-Yi Chen, Maurizia Palummo, Davide Sangalli +1
Monolayer transition metal dichalcogenides (TMDCs) are direct gap semiconductors with unique potential for ultrathin light emitters. Yet, their photoluminescence (PL) is not comple…