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    • Keywords


      Mixed valent systems; Falicov–Kimball model; correlated hopping.

    • Abstract


      Role of correlated hopping is studied using extended Falicov–Kimball model in a small cluster. A discontinuous insulator-to-metal transition is observed at a critical 𝑓-level energy. Transition is sharper for larger correlated hopping. In the specific heat curves a two-peak structure consisting of a sharp peak followed by a Schottky-type broad peak is exhibited. In a limited parameter region, some heavy-fermion like characteristics have been observed

    • Author Affiliations


      N K Ghosh1 S K Bhowmick1 N S Mondal1

      1. Department of Physics, University of Kalyani, Kalyani 741 235, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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