4 papers
Charge Symmetry Beyond Wyckoff Equivalence
Qiu-Shi Huang, Xin-Gao Gong, Su-Huai Wei
Crystallographic symmetry is usually taken as a guide to electronic equivalence in crystals: atoms on the same Wyckoff position are expected to have the same charge, whereas atoms…
Fractional Quantum Multiferroics from Coupling of Fractional Quantum Ferroelectricity and Altermagnetism
M. Q. Dong, B. Liu, Z. H. Dai +3
Multiferroics, which combine ferroelectric and magnetic order, offer a transformative platform for next-generation electronic devices. However, the intrinsic competition between th…
Field-free perpendicular magnetization switching by altermagnet with collinear spin current
M. Q. Dong, Zhi-Xin Guo, Xin-Gao Gong
The generation of collinear spin current (CSC), where both the propagation direction and spin-polarized direction aligned perpendicularly to the applied charge current, is crucial…
Unusually Strong Four-Phonon Scattering Effects on Low-Temperature Thermal Conductivity in Two-Dimensional Materials
H. F. Feng, B. Liu, Xin-Gao Gong +1
First principles-based predictions of lattice thermal conductivity (TC) from perturbation theory have achieved significant success. Usually, it only included three-phonon (3ph) sca…