Correlation-driven phase transition in a Chern insulator

HS Nguyen, MT Tran - Physical Review B—Condensed Matter and Materials …, 2013 - APS
The phase transition driven by electron correlations in a Chern insulator is investigated
within the dynamical mean-field theory. The Chern insulator is described by the Haldane …

Electron correlation and magnetic field induced phase transitions in spin-1/2 Falicov–Kimball model on a triangular lattice

S Pandey, UK Yadav, PK Priya - The European Physical Journal B, 2024 - Springer
We have studied the ground state properties of spin-1/2 Falicov–Kimball model on a
triangular lattice in the presence of external magnetic field. Numerical and Monte Carlo …

Classical and quantum liquids induced by quantum fluctuations

MM Oliveira, P Ribeiro, S Kirchner - Physical Review Letters, 2019 - APS
Geometrically frustrated interactions may render classical ground states macroscopically
degenerate. The connection between classical and quantum liquids and how the …

Study of ground state phases for spin-1/2 Falicov–Kimball model on a triangular lattice

S Kumar, UK Yadav, T Maitra, I Singh - Solid state communications, 2014 - Elsevier
Abstract The spin-dependent Falicov–Kimball model (FKM) is studied on a triangular lattice
using numerical diagonalization technique and Monte-Carlo simulation algorithm. Magnetic …

Phase transitions in a spinless, extended Falicov–Kimball model on the triangular lattice

UK Yadav, T Maitra, I Singh - Solid state communications, 2013 - Elsevier
A numerical diagonalization technique with canonical Monte-Carlo simulation algorithm is
used to study the phase transitions from low temperature (ordered) phase to high …

The role of intra-and inter-site exchange correlations in the extended Falicov–Kimball model on a triangular lattice

S Kumar, UK Yadav, T Maitra, I Singh - Solid State Communications, 2016 - Elsevier
Ground state magnetic properties of the spin-dependent Falicov–Kimball model (FKM) are
studied by incorporating the intrasite exchange correlation J (between itinerant d-and …

Orbital magnetic field driven metal–insulator transition in spinless extended Falicov–Kimball model on a triangular lattice

UK Yadav - Solid State Communications, 2017 - Elsevier
Ground state properties of spinless, extended Falicov–Kimball model (FKM) on a finite size
triangular lattice with orbital magnetic field normal to the lattice are studied using numerical …

Thermodynamic studies of spin-1/2 Falicov-Kimball model (FKM) on a triangular lattice

S Kumar, UK Yadav, T Maitra, I Singh - AIP Conference Proceedings, 2016 - pubs.aip.org
Thermodynamic properties of the spin" dependent Falicov" Kimball model are studied on a
triangular lattice for one" fourth filled case. Numerical diagonalization and Monte" Carlo …

Ground State Properties of Spin-1/2 Falicov-Kimball Model on a Triangular Lattice with Uniform External Magnetic Field

UK Yadav, PK Priya - Proceedings of the National Workshop on Recent …, 2022 - Springer
Electrons moving on a lattice in the presence of external magnetic field is always an
interesting problem giving rise to many novel phenomena like flux quantization, quantum …

Metal-insulator transition and band magnetism in the spin-1∕ 2 Falicov-Kimball model on a triangular lattice with external magnetic field

UK Yadav - The European Physical Journal B, 2020 - Springer
Ground state properties of the spin− 1∕ 2 Falicov-Kimball model on a triangular lattice in the
presence of uniform external magnetic field are explored. Both the orbital and the Zeeman …