464 citations · 3.5k across the 40 of their papers we have counts for
5 papers · 1 filter
Emergent topological and half semimetallic Dirac Fermions at oxide interfaces
Tian-Yi Cai, Xiao Li, Fa Wang +3
It is highly desirable to combine recent advances in the topological quantum phases with technologically relevant materials. Chromium dioxide (CrO2) is a half-metallic material, wi…
Longitudinal spin excitations and magnetic anisotropy in antiferromagnetically ordered BaFe2As2
Chong Wang, Rui Zhang, Fa Wang +4
We report on a spin-polarized inelastic neutron scattering study of spin waves in the antiferromagnetically ordered state of BaFe2As2. Three distinct excitation components are iden…
Fermiology, Orbital Order, Orbital Fluctuation and Cooper Pairing in Iron-based Superconductors
Fan Yang, Fa Wang, Dung-Hai Lee
We address two important issues that arise in recent studies of iron-based superconductivity. (1) Why are the T_c of A_xFe_{2-y}Se_2 and the single unit cell FeSe on SrTiO so h…
Critical theories of phase transition between symmetry protected topological states and their relation to the gapless boundary theories
Xie Chen, Fa Wang, Yuan-Ming Lu +1
Symmetry protected topological states (SPTs) have the same symmetry and the phase transition between them are beyond Landau's symmetry breaking formalism. In this paper we study (1…
Detect Spinons via Spin Transport
Chui-Zhen Chen, Qing-feng Sun, Fa Wang +1
Existence of spinons is the defining property of quantum spin liquids. These exotic excitations have (fractionalized) spin quantum number and no electric charge, and have been prop…