Transition from Pauli paramagnetism to Curie-Weiss behavior in vanadium

We study electron correlations and their impact on magnetic properties of bcc vanadium by a combination density functional dynamical mean-field theory. The calculated uniform susceptibility in structure is Pauli type at low temperatures, while it obeys the Curie-Weiss law higher temperatures. Thus, we qualitatively reproduce experimental temperature dependence without introducing martensitic phase transition. Our results for local spin-spin correlation function reveal that behavior appears due to partial formation moments, which originate from ${t}_{2g}$ states occur spin caused Hund's rule coupling. At same time, fermionic quasiparticles remain well defined, moments accompanied deviation Fermi-liquid behavior. In particular, self-energy shows nonanalytic frequency dependence, characteristic spin-freezing behavior, quasiparticle damping changes approximately linearly with intermediate range 200--700 K. By analyzing momentum static susceptibility, find incommensurate correlations, may provide mechanism unconventional superconductivity