2021/11/01 by Komal Kumari, Kumari, Komal
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #Molecular spectroscopy and chirality #Quantum, superfluid, helium dynamics #Strongly Correlated Electrons (cond-mat.str-el)
paper · pdf · doi:10.48550/arxiv.2111.00682
openalex publication_date 2021/11/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The optical conductivity in a Kondo lattice system is presented in terms of the memory function formalism. I use Kondo-lattice Hamiltonian for explicit calculations. I compute the frequency dependent imaginary part of the memory function (M\p\p(\om)), and the real part of the memory function M\p(\om) by using the Kramers-Kronig transformation. Optical conductivity is computed using the generalized Drude formula. I find that high frequency tail of the optical conductivity scales as σ(\om) ∼ (1)/(\om) instead of the Drude (1)/(\om2) law. Such a behaviour is seen in strange metals. My work points out that it may be the magnetic scattering mechanisms that are important for the anomalous behaviour of strange metals.