4 citations · 6 across the 4 of their papers we have counts for
4 papers
Hidden topology and strong quantum metric bounds in trivial systems
Chang-An Li, Yulin Qin, Bo Fu +1
The quantum metric integral (QMI) in two-dimensional (2D) systems is conventionally bounded from below by the Chern number. For systems with zero Chern number or identically vanish…
Altermagnetism Induced Bogoliubov Fermi Surfaces Form Topological Superconductivity
Bo Fu, Chang-An Li, Björn Trauzettel
We propose a novel type of topological superconductivity based on Bogoliubov Fermi surfaces (BFSs) in an altermagnetic topological insulator proximitized by an s-wave superconducto…
Marginal Metals and Kosterlitz-Thouless Type Phase Transition in Disordered Altermagnets
Chang-An Li, Bo Fu, Huaiming Guo +2
Altermagnetism, a recently discovered magnetic phase characterized by spin-split bands without net magnetization, has emerged as promising platform for novel physics and potential…
Random-Flux-Induced Transition Sequence between Weak and Strong Topological Phases with Anisotropic Localization Properties
Chang-An Li, Bo Fu, Jian Li +1
We demonstrate that random flux is able to drive nontrivial topological phase transitions, in particular between weak topological insulators (WTIs) and Chern insulators (CIs), illu…