2014/04/30 by I. Panfilov, Ivan Panfilov, A. A. Burkov +1 · 1 citation
Materials Science · Mathematics · Physics and Astronomy · #Chiral anomaly #Compressibility #Condensed matter physics #Fermion #Ferromagnetism #Field (mathematics) #Graphene research and applications #Magnetic field #Mathematics #Mechanics #Physics #Plasmon #Quantum many-body systems #Quantum mechanics #Topological Materials and Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.89.245103
published as Phys. Rev. B 89, 245103 (2014) · 7+ pages, 1 figure, published version
arxiv created 2014/06/04 · openalex publication_date 2014/06/04 · arxiv updated 2014/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We report on a study of the density response in doped Weyl semimetals or Weyl metals in the presence of an external magnetic field. We show that the applied field leads to a contribution to the density response, which is topological in nature and is closely related to the phenomenon of chiral anomaly. This contribution manifests in a nonanalytic nonclassical correction to the electronic compressibility and the plasmon frequency, proportional to the magnitude of the magnetic field. Such a nonanalytic correction to the electronic compressibility is a smoking-gun feature of Weyl metals, which clearly distinguishes them from ordinary ferromagnetic metals.