4 papers
Ferroelectric Band Twinning from Pair-State Symmetry
Shibo Fang, Jianhua Wang, Zhenzhou Guo +8
Ferroelectric switching provides a nonvolatile way to control electronic structures, but a general symmetry rule connecting the full Bloch bands of two switchable polarization stat…
Electric-Field Control of Terahertz Response via Spin-Corner-Layer Coupling in Altermagnetic Bilayers
Jianhua Wang, Yilin Han, Shifeng Qian +4
Electric field control of electron charge and spin degrees of freedom is fundamental to modern semiconductor and spintronic devices. Yet controlling electromagnetic waves with an e…
Unconventional topological Weyl-dipole phonon
Jianhua Wang, Yang Wang, Feng Zhou +5
A pair of Weyl points (WPs) with opposite Chern numbers can exhibit an additional higher-order topological charge, giving rise to the formation of a Weyl di…
Real topological phonons in 3D carbon allotropes
Xiaotian Wang, Jingbo Bai, Jianhua Wang +6
There has been a significant focus on real topological systems that enjoy space-time inversion symmetry (PT ) and lack spin-orbit coupling. While the theoretical classification of…