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Browsing Research Articles (Vidhyadhiraja N. S.) by Subject "Condensed Matter Physics"

Browsing Research Articles (Vidhyadhiraja N. S.) by Subject "Condensed Matter Physics"

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  • Finite-cluster typical medium theory for disordered electronic systems 
    Ekuma, C. E.; Moore, C.; Terletska, H.; Tam, K. -M.; Moreno, J.; Jarrell, M.; Vidhyadhiraja, N. S. (American Physical Society, 2015)
    We use the recently developed typical medium dynamical cluster (TMDCA) approach [Ekuma et al., Phys. Rev. B 89, 081107 (2014)] to perform a detailed study of the Anderson localization transition in three dimensions for the ...
  • Kondo-hole substitution in heavy fermions: Dynamics and transport 
    Kumar, Pramod; Vidhyadhiraja, N. S. (American Physical Society, 2014)
    Kondo-hole substitution is a unique probe for exploring the interplay of interactions, f-electron dilution, and disorder in heavy-fermion materials. Within the diluted periodic Anderson model, we investigate the changes ...
  • Metal-insulator transition in a weakly interacting disordered electron system 
    Ekuma, C. E.; Yang, S. -X.; Terletska, H.; Tam, K. -M.; Vidhyadhiraja, N. S.; Moreno, J.; Jarrell, M. (American Physical Society, 2015)
    The interplay of interactions and disorder is studied using the Anderson-Hubbard model within the typical medium dynamical cluster approximation. Treating the interacting, nonlocal cluster self-energy [Sigma(c)[(g) over ...
  • Preformed excitons, orbital selectivity, and charge density wave order in 1T-TiSe2 
    Koley, S.; Laad, M. S.; Vidhyadhiraja, N. S.; Taraphder, A. (American Physical Society, 2014)
    Traditional routes to charge density wave (CDW) in transition-metal dichalcogenides, relying on Fermi surface nesting or Jahn-Teller instabilities, have recently been brought into question. While this calls for exploration ...
  • Site-disorder driven superconductor-insulator transition: a dynamical mean field study 
    Kamar, Naushad Ahmad; Vidhyadhiraja, N. S. (IoP Publishing Ltd, 2014)
    We investigate the effect of site disorder on the superconducting state in the attractive Hubbard model within the framework of dynamical mean field theory. For a fixed interaction strength (U), the superconducting order ...
  • Spectral changes in layered f-electron systems induced by Kondo hole substitution in the boundary layer 
    Sen, Sudeshna; Moreno, J.; Jarrell, M.; Vidhyadhiraja, N. S. (American Physical Society, 2015)
    We investigate the effect of disorder on the dynamical spectrum of layered f-electron systems. With random dilution of f sites in a single Kondo insulating layer, we explore the range and extent to which Kondo hole incoherence ...

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