Research Paper#Condensed Matter Physics, Topological Insulators, Disorder🔬 ResearchAnalyzed: Jan 3, 2026 16:51
Diffusive Metal in a Chern Insulator with Geometric Disorder
Published:Dec 30, 2025 07:48
•1 min read
•ArXiv
Analysis
This paper explores the emergence of a robust metallic phase in a Chern insulator due to geometric disorder (random bond dilution). It highlights the unique role of this type of disorder in creating novel phases and transitions in topological quantum matter. The study focuses on the transport properties of this diffusive metal, which can carry both charge and anomalous Hall currents, and contrasts its behavior with that of disordered topological superconductors.
Key Takeaways
- •Demonstrates the emergence of a diffusive metal in a Chern insulator with geometric disorder.
- •The metal can carry both charge and anomalous Hall currents.
- •The metal-insulator transition exhibits a different critical exponent compared to disordered topological superconductors.
- •Highlights the unique role of geometric disorder in engineering novel phases in topological quantum matter.
Reference
“The metallic phase is realized when the broken links are weakly stitched via concomitant insertion of $π$ fluxes in the plaquettes.”