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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13453
Title: A ground state phase diagram of a spinless, extended Falicov-Kimball model on the triangular lattice
Authors: Yadav U.K.
Maitra, Tulika
Singh I.
Taraphder A.
Published in: Journal of Physics Condensed Matter
Abstract: Correlated systems with hexagonal layered structures have come to the fore with renewed interest in cobaltates, transition metal dichalcogenides and GdI2. While superconductivity, unusual metal and possible exotic states (prevented from long-range order by strong local fluctuations) appear to come from frustration and correlation working in tandem in such systems, they freeze at a lower temperature to crystalline states. The underlying effective Hamiltonian in some of these systems is believed to be the Falicov-Kimball model and therefore, a thorough study of the ground state of this model and its extended version on a non-bipartite lattice is important. Using a Monte Carlo search algorithm, we identify a large number of different possible ground states with charge order as well as valence and metal-insulator transitions. Such competing states, close in energy, give rise to complex charge order and other broken symmetry structures as well as the phase segregations observed in the ground state of these systems. © 2010 IOP Publishing Ltd.
Citation: Journal of Physics Condensed Matter (2010), 22(29): -
URI: https://doi.org/10.1088/0953-8984/22/29/295602
http://repository.iitr.ac.in/handle/123456789/13453
Issue Date: 2010
ISSN: 9538984
Author Scopus IDs: 36182569400
7004183343
57206594996
6602698909
Author Affiliations: Yadav, U.K., Department of Physics, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
Maitra, T., Department of Physics, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
Singh, I., Department of Physics, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
Taraphder, A., Department of Physics, Centre for Theoretical Studies, Indian Institute of Technology, Kharagpur-721 302, India
Corresponding Author: Yadav, U. K.; Department of Physics, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
Appears in Collections:Journal Publications [PH]

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