2018/01/01 by Kaifa Luo, Rui Yu, Hongming Weng · 1 voice
Physics and Astronomy · #Topological Materials and Phenomena #Quantum Mechanics and Non-Hermitian Physics #Quantum and electron transport phenomena
paper · doi:10.1155/2018/6793752
openalex publication_date 2018/01/01 · openalex created_date 2018/01/26 · openalex updated_date 2026/07/28
The search for artificial structure with tunable topological properties is an interesting research direction of today's topological physics. Here, we introduce a scheme to realize topological nodal states with a three-dimensional periodic inductor-capacitor (LC) circuit lattice, where the topological nodal line state and Weyl state can be achieved by tuning the parameters of inductors and capacitors. A tight-binding-like model is derived to analyze the topological properties of the LC circuit lattice. The key characters of the topological states, such as the drumhead-like surface bands for nodal line state and the Fermi arc-like surface bands for Weyl state, are found in these systems. We also show that the Weyl points are stable with the fabrication errors of electric devices.