1 citations · 2 across the 4 of their papers we have counts for
6 papers
Topological classification through knotted graphs: Fermi surface dispersions and Lifshitz transitions
Hakan Akgün, Xianquan Yan, Ching Hua Lee
Knot theory has provided a rich topological taxonomy for band structures, but its reach is fundamentally limited: knot invariants classify only 1D nodal lines at gap closure, and c…
Generalized Brillouin Zone Fragmentation
Haiyu Meng, Yee Sin Ang, Ching Hua Lee
The Generalized Brillouin Zone (GBZ) encodes how lattice momentum is complex-deformed due to non-Hermitian skin accumulation, and has proved essential in restoring bulk-boundary co…
One-dimensional electronics with edge states in two-dimensional altermagnets
Shibo Fang, Zongmeng Yang, Jianhua Wang +5
The coupling between real-space inhomogeneities coordinates and spin (r-s) provides an alternative route to achieve efficient spin manipulation in spintronics beyond the convention…
HSG-12M: A Large-Scale Benchmark of Spatial Multigraphs from the Energy Spectra of Non-Hermitian Crystals
Xianquan Yan, Hakan Akgün, Kenji Kawaguchi +2
AI is transforming scientific research by revealing new ways to understand complex physical systems, but its impact remains constrained by the lack of large, high-quality domain-sp…
Unconventional tunnel magnetoresistance scaling with altermagnets
Zongmeng Yang, Xingyue Yang, Jianhua Wang +7
In conventional magnetic tunnel junctions (MTJs), the tunnel magnetoresistance (TMR) typically increases with barrier thickness as electron transmission in the antiparallel configu…
Half-Valley Ohmic Contact and Contact-Limited Valley-Contrasting Current Injection
Xukun Feng, Chit Siong Lau, Shi-Jun Liang +3
Two-dimensional (2D) ferrovalley semiconductor (FVSC) with spontaneous valley polarization offers an exciting material platform for probing Berry phase physics. How FVSC can be inc…