4 papers
FermiLink: A Unified Agent Framework for Multidomain Autonomous Scientific Simulations
Gang Meng, Andres Felipe Bocanegra Vargas, Xinwei Ji +7
Artificial-intelligence (AI) agent frameworks have been developed for autonomous scientific simulations, but most current agent frameworks are tailored to a single or a small set o…
Dissipative Nonlinear Phononics: Nonequilibrium Quasiperiodic Order in Light-Driven Spin-Phonon System
Brayan I. Eraso-Solarte, Yafei Ren
Nonlinear phononics has emerged as a powerful paradigm for the nonthermal control of quantum materials by engineering a conservative potential energy landscape. Here, we show that…
Ultrafast optical excitation of magnons in 2D antiferromagnetic semiconductors via spin torque mediated by unbound electron-hole pairs and excitons: Signatures in magnonic charge pumping
Jalil Varela-Manjarres, Yafei Ren, Branislav K. Nikolic
Recent experiments observing how femtosecond laser pulse (fsLP) excites magnons in two-dimensional (2D) antiferromagnetic (AF) semiconductors -- such as CrSBr, NiPS, and MnPS$_…
Light-induced ultrafast magnetization dynamics in van der Waals antiferromagnetic CrSBr
Ali Kefayati, Yafei Ren
We investigate the ultrafast magnetization dynamics of semiconducting antiferromagnetic CrSBr using real-time time-dependent density functional theory. In zero magnetic field, lase…