3 papers
cond-mat.str-el2026
Ultrafast Current Switching from Quantum Geometry in Semimetals
Youngjae Kim, Sejoong Kim, Jun-Won Rhim
Technological progress towards next-generation electronics critically relies on achieving faster switching with reduced energy consumption. Because device operation speeds are fund…
cond-mat.mtrl-sci2026
High Photovoltaic Efficiency in Bulk-Stacked One-Dimensional GeSe van der Waals Crystal
Seoung-Hun Kang, Youngjae Kim, Bo Gyu Jang +1
Germanium diselenide (GeSe) has recently attracted substantial interest as a rare example of one-dimensional (1D) van der Waals material. Here, we investigate the photovoltai…
cond-mat.str-el2026
Topological Protection by Local Support Symmetry and Destructive Interference
Jun-Won Rhim, Jaeuk Seo, Seongjun Mo +3
Conventionally, symmetry-protected topological phases and band crossings are protected by global symmetries acting on the entire system. Here, we show that symmetries preserved onl…