Time-reversal soliton pairs in even spin Chern number higher-order topological insulators

YC Hung, B Wang, CH Hsu, A Bansil, H Lin - Physical Review B, 2024 - APS
Solitons formed through the one-dimensional mass-kink mechanism on the edges of two-
dimensional systems with nontrivial topology play an important role in the emergence of …

Theory of fractional corner charges in cylindrical crystal shapes

H Wada, T Zhang, S Murakami - arXiv preprint arXiv:2412.18871, 2024 - arxiv.org
Recent studies showed that topologically trivial insulators may have fractionally quantized
corner charges due to the topological invariant called a filling anomaly. Such crystal shapes …