Generation of localized magnetic moments in the charge-density-wave state

Ramil S. Akzyanov, Alexander V. Rozhkov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

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, the 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.

Original languageEnglish
Article number196
JournalEuropean Physical Journal B
Volume88
Issue number8
DOIs
Publication statusPublished - 3 Aug 2015
Externally publishedYes

Keywords

  • Solid State and Materials

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