5 papers
High-Throughput Discovery of Semimetallic Borophenes with Diverse Dirac States Via Transferable Tight-Binding Approach
Yuke Song, Shifang Li, Tao Ouyang +3
Borophene has attracted extensive interest due to its structural flexibility and emergent topological electronic states. However, semimetallic borophenes hosting robust Dirac state…
Domain-Direct Band Gaps: Classification and Material Realization
Yalan Wei, Hairui Ding, Shifang Li +4
The conventional classification of direct band-gap semiconductors relies on point-like extrema in momentum space. Here, we introduce the concept of domain-direct band gaps, where t…
Two-dimensional flat-bands in Moire-diamonds
Yalan Wei, Shifang Li, Yuke Song +1
The discovery of flat-bands in magic-angle twisted bilayer graphene has underscored the potential of moire engineering for correlated states, but such phases are notoriously diffic…
First-principles predictions of the diversity in atomic structures and electronic properties of the reconstructed Si(111)-7x7 surface
Yuke Song, ShiFang Li, PeiZe Lin +4
The 7x7 reconstruction of Si(111) surface is widely understood by the dimer-adatom-stacking-fault model (DAS), but the predicted metallicity of DAS contradicts experimental signs o…
Observation of Majorana zero modes emerged from topological Dirac semimetal states under uniaxial strain
Quanxin Hu, Shengshan Qin, Yi Peng +12
The topological properties observed in iron-based superconductors extend our understanding of vortex Majorana quasiparticle excitations in unexpected ways. Vortex Majorana physics…