8 papers · 1 filter
The Frequency-Dependent Spin Contribution to the Magnetoelectric Tensor of CrO: A First-Principles Study
Torsten Geirsson, Davide Sangalli, Alberto García-Cristóbal +1
The magnetoelectric (ME) effect provides a promising pathway for controlling magnetic functionalities using electric fields. While first-principles methods for the static linear ME…
Nonequilibrium dynamics of high energy transitions in monolayer WSe
Oleg Dogadov, Jorge Cervantes-Villanueva, Nicholas Olsen +6
High-energy optical transitions in monolayer transition-metal dichalcogenides exhibit characteristics that are markedly distinct from those of lower-lying band-edge excitons. These…
Coherent Ultrafast Excitonic Oscillations in Monolayer WS
Jorge Cervantes-Villanueva, Alberto GarcÃa-Cristóbal, Davide Sangalli +1
Monolayer transition metal dichalcogenides are a suitable platform for studying excitonic coherence in the light-matter coupling regime. We present an ab initio time-dependent GW-B…
Solvers for the Hermitian and the pseudo-Hermitian Bethe-Salpeter equation in the Yambo code: Implementation and Performance
Petru Milev, Blanca Mellado-Pinto, Muralidhar Nalabothula +8
We analyze the performance of two strategies in solving the structured eigenvalue problem deriving from the Bethe-Salpeter equation (BSE) in condensed matter physics. The BSE matri…
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…
Magnons in chromium trihalides from \emph{ab initio} Bethe-Salpeter equation
Ali Esquembre-KuÄukaliÄ, Khoa B. Le, Alberto GarcÃa-Cristóbal +3
Chromium trihalides (CrX, with ) are layered ferromagnetic materials with rich physics and possible applications. Their structure consists of magnetic Cr atoms…