2014/10/09 by R. S. Akzyanov, A. V. Rozhkov · 3 citations
Materials Science · Physics and Astronomy · #Charge (physics) #Charge density wave #Computer science #Condensed matter physics #Magnetic moment #Magnetism in coordination complexes #Organic and Molecular Conductors Research #Physics #Quantum and electron transport phenomena #Quantum mechanics #State (computer science) #cond-mat.str-el
paper · pdf · doi:10.1140/epjb/e2015-60219-x
published in The European Physical Journal B 88(8) (Springer Science+Business Media) · 8 pages, 7 figures
arxiv created 2014/10/09 · openalex publication_date 2015/07/30 · arxiv updated 2015/08/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose a mechanism explaining the generation of localized magnetic moments in charge-density-wave compounds. Our model Hamiltonian describes an Anderson impurity placed in a host material exhibiting the charge-density wave. There is a region of the model's parameter space, where even weak Coulomb repulsion on the impurity site is able to localize the magnetic moment on the impurity. The phase diagram of a single impurity at T=0 is mapped. To establish the connection with experiment thermodynamic properties of a random impurity ensemble is studied. Magnetic susceptibility of the ensemble diverges at low temperature; heat capacity as a function of the magnetic field demonstrates pronounced low field peak. Both features are consistent with experiments on orthorhombic TaS3 and blue bronze.