373 citations · 825 across the 19 of their papers we have counts for
13 papers · 1 filter
Assessing the atomic moment picture of spin dynamics: the perspective of \textit{ab initio} magnon wavefunction
Yihao Lin, Ji Feng
Our understanding of collective spin fluctuation in materials relies largely on Heisenberg-type spin Hamiltonians. Implicit in these spin models is the atomic moment picture that i…
An implementation of the density functional perturbation theory in the PAW framework
Xiaoqiang Liu, Yihao Lin, Ji Feng
Quantifying materials' dynamical responses to external electromagnetic fields is central to understanding their physical properties. Here we present an implementation of the densit…
Eightfold Fermionic Excitation in a Charge Density Wave Compound
Xi Zhang, Qiangqiang Gu, Haigen Sun +19
Unconventional quasiparticle excitations in condensed matter systems have become one of the most important research frontiers. Beyond two- and fourfold degenerate Weyl and Dirac fe…
A non-iterative method for the vertex corrections of the Kubo formula for electric conductivity
Yi-Wen Wei, Chao-Kai Li, Yuchuang Cao +1
In computing electric conductivity based on the Kubo formula, the vertex corrections describe such effects as anisotropic scattering and quantum interference and are important to q…
High-pressure lithium as an elemental topological semimetal
S. F. Elatresh, Zhimou Zhou, N. W. Ashcroft +3
Topological semimetals generally contain heavy elements. Using density-functional theoretic calculations, we predict that three dense lithium polymorphs in the pressure range 200--…
Oxygen-Octahedral-Tilting-Driven Topological Hall Effect in Ultrathin SrRuO3 Films
Youdi Gu, Yi-Wen Wei, Kun Xu +13
Topological spin textures as an emerging class of topological matter offer a medium for information storage and processing. The recently discovered topological Hall effect (THE) is…