4 papers
Uncovering multi-channel magnetic hopfion annihilation via a single-node, billion-spin-scale atomistic framework
Qichen Xu, Anna Delin
Modern atomistic spin simulations combine long stochastic trajectories, thermodynamic sampling, static optimization and multi-image transition-path workflows, all of which rely on…
Electronic Origin of Density Wave Orders in a Trilayer Nickelate
Jiangang Yang, Jun Zhan, Taimin Miao +24
The discovery of superconductivity in Ruddlesden-Popper nickelates has established a new frontier in the study of high-temperature superconductors. However, the underlying pairing…
A general optimization framework for mapping local transition-state networks
Qichen Xu, Anna Delin
Understanding how complex systems transition between states requires mapping the energy landscape that governs these changes. Local transition-state networks reveal the barrier arc…
Design of 2D Skyrmionic Metamaterial Through Controlled Assembly
Qichen Xu, Zhuanglin Shen, Alexander Edström +7
Despite extensive research on magnetic skyrmions and antiskyrmions, a significant challenge remains in crafting nontrivial high-order skyrmionic textures with varying, or even tail…