5 papers
Fine-grained topological structures hidden in Fermi sea
Wei Jia
The geometry of Fermi sea hosts a unique form of quantum topology that governs the conductance quantization of metal and is characterized by the Euler characteristic , offeri…
Unconventional hybrid-order topological insulators
Wei Jia, Yuping Tian, Huanhuan Yang +4
Exploring novel topological matters with exotic quantum states has always been a core issue in the field of condensed matter physics, which can update the understanding of topologi…
Multiple topological corner states in the continuum of extended kagome lattice
Shun-Peng Zhang, Ming-Jian Gao, Wei Jia +1
The kagome lattice is renowned for its exotic electronic properties, such as flat bands, Dirac points, and Van Hove singularities. These features have provided a fertile ground for…
Generic reduction theory for Fermi sea topology in metallic systems
Wei Jia
The Fermi sea of a metal can host exotic quantum topology, which governs its conductance quantization and is characterized by the Euler characteristic (). In contrast to the…
Unveiling Higher-Order Topology via Polarized Topological Charges
Wei Jia, Bao-Zong Wang, Ming-Jian Gao +1
Higher-order topological phases (HOTPs) host exotic topological states that go beyond the traditional bulk-boundary correspondence. Up to now, there is still a lack of experimental…