178 citations · 409 across the 8 of their papers we have counts for
4 papers · 1 filter
Many-body approach to non-Hermitian physics in fermionic systems
Eunwoo Lee, Hyunjik Lee, Bohm-Jung Yang
In previous studies, the topological invariants of 1D non-Hermitian systems have been defined in open boundary condition (OBC) to satisfy the bulk-boundary correspondence. The extr…
Sign-tunable anomalous Hall effect induced by two-dimensional symmetry-protected nodal structures in ferromagnetic perovskite oxide thin films
Byungmin Sohn, Eunwoo Lee, Se Young Park +16
Magnetism and spin-orbit coupling (SOC) are two quintessential ingredients underlying novel topological transport phenomena in itinerant ferromagnets. When spin-polarized bands sup…
Two-dimensional higher-order topology in monolayer graphdiyne
Eunwoo Lee, Rokyeon Kim, Junyeong Ahn +1
Based on first-principles calculations and tight-binding model analysis, we propose monolayer graphdiyne as a candidate material for a two-dimensional higher-order topological insu…
Fractional charge bound to a vortex in two dimensional topological crystalline insulators
Eunwoo Lee, Akira Furusaki, Bohm-Jung Yang
We establish the correspondence between the fractional charge bound to a vortex in a textured lattice and the relevant bulk band topology in two-dimensional (2D) topological crysta…