147 citations · 642 across the 27 of their papers we have counts for
4 papers · 1 filter
Enhancement of Second-Order Non-Hermitian Skin Effect by Magnetic Fields
Chang-An Li, Björn Trauzettel, Titus Neupert +1
The non-Hermitian skin effect is a unique phenomenon in which an extensive number of eigenstates are localized at the boundaries of a non-Hermitian system. Recent studies show that…
Helical Topological Superconducting Pairing at Finite Excitation Energies
Masoud Bahari, Song-Bo Zhang, Chang-An Li +4
We propose helical topological superconductivity away from the Fermi surface in three-dimensional time-reversal-symmetric odd-parity multiband superconductors. In these systems, pa…
Topological States in Two-Dimensional Su-Schrieffer-Heeger Models
Chang-An Li
We study the topological properties of the generalized two-dimensional (2D) Su-Schrieffer-Heeger (SSH) models. We show that a pair of Dirac points appear in the Brillouin zone (BZ)…
Magnetic topological transistor exploiting layer-selective transport
Hai-Peng Sun, Chang-An Li, Sang-Jun Choi +3
We propose a magnetic topological transistor based on MnBiTe, in which the "on" state (quantized conductance) and the "off" state (zero conductance) can be easily switc…