3 papers
cond-mat.other2026
Origin of Giant Phonon Magnetic Moment in Orbital Seebeck Effect: a Heisenberg-type L-L Coupling
Hong Sun, Jinxin Zhong, Yimin Yao +2
Inspired by the recent observation of the orbital Seebeck effect in alpha-quartz, we identify an intrinsic amplification mechanism for thermally generated phonon angular momentum a…
cond-mat.mtrl-sci2025
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…
cond-mat.mtrl-sci2025
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…