4 papers
Birefringence-Driven Anisotropic -MoO3 Optical Cavities
Jia-Liang Xie, Ting-Ting Wang, Chen-Kai Liu +4
Many anisotropic layered materials, despite their strong in-plane birefringence, exhibit substantial visible absorption, which severely restricts cavity lengths and hinders the obs…
Alteraxial Phonons in Collinear Magnets
Fuyi Wang, Junqi Xu, Xinqi Liu +3
Axial phonons, carrying angular momentum through rotational lattice vibrations, offer a promising platform for exploring phonon-magnetic coupling effects. However, how the interpla…
Ab Initio Theory of Phonon Magnetic Moment Induced by Electron-Phonon Coupling in Magnetic Materials
Fuyi Wang, Xinqi Liu, Hong Sun +5
Circularly polarized phonons, characterized by nonzero angular momenta and magnetic moments, have attracted extensive attention. However, a long-standing critical issue in this fie…
Finite-temperature Green's function theory of terahertz-induced phonon angular momentum in polar crystals
Hong Sun, Xiaozhe Li, Lifa Zhang
We develop a self-energy-dressed Green's-function framework for terahertz-induced phonon angular momentum in polar crystals. The rectified angular-momentum response is formulated a…