# GdI2: a new ferromagnetic excitonic solid?

@article{Taraphder2008GdI2AN, title={GdI2: a new ferromagnetic excitonic solid?}, author={A. Taraphder and Mukul S. Laad and Luis Craco and Alexander N. Yaresko}, journal={Physical review letters}, year={2008}, volume={101 13}, pages={ 136410 } }

The two-dimensional, colossal magnetoresistive system GdI2 develops an unusual metallic state below its ferromagnetic transition and becomes insulating at low temperatures. We argue that this geometrically frustrated, correlated poor metal is a possible candidate for a ferromagnetic excitonic liquid. The renormalized Fermi surface supports a further breaking of symmetry to a charge-ordered, excitonic solid ground state at lower temperatures via order by disorder mechanism. Several experimental…

## 15 Citations

A ground state phase diagram of a spinless, extended Falicov-Kimball model on the triangular lattice.

- Chemistry, PhysicsJournal of physics. Condensed matter : an Institute of Physics journal
- 2010

A Monte Carlo search algorithm identifies a large number of different possible ground states with charge order as well as valence and metal-insulator transitions in related systems with hexagonal layered structures, giving rise to complex charge order and other broken symmetry structures.

Prediction of a two-dimensional high-TC f-electron ferromagnetic semiconductor

- Materials Science
- 2020

Two-dimensional (2D) ferromagnetic semiconductors (FMSs) exhibit novel spin-dependent electronic and optical properties, opening up exciting opportunities for nanoscale spintronic devices. However,…

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

- Physics
- 2017

Abstract 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…

Antiferromagnetic skyrmion crystals in the Rashba Hund’s insulator on triangular lattice

- MedicineScientific reports
- 2021

It is found that two distinct antiferromagnetic skyrmion crystal (AF-SkX) states can be stabilized at low temperatures in the presence of external magnetic field.

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

- Physics
- 2014

The spin-dependent Falicov–Kimball model (FKM) is studied on a triangular lattice using numerical diagonalization technique and Monte-Carlo simulation algorithm. Magnetic properties have been…

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

- Chemistry, Physics
- 2016

Abstract 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 localized f…

High Curie temperatures in Gd-dihalide Janus monolayers

- Materials ScienceJournal of Applied Physics
- 2021

As MoSSe has been successfully synthesized, it is expected that Janus structures would be newly developed as 2D materials with intriguing physical properties. Here, monolayer Janus GdXY (with X/Y =…

Phase Transitions in Spin-1/2 Falicov–Kimball Model on a Two-dimensional Triangular Lattice

- Physics
- 2017

Phase transitions from low-temperature (ordered) phases to high-temperature (disordered/homogeneous) phases for different fillings are studied on a triangular lattice using the spin-dependent…

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

- Chemistry
- 2016

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 simulation are used to…

Thermodynamic studies of the two dimensional Falicov-Kimball model on a triangular lattice

- Physics
- 2011

Abstract
Thermodynamic properties of the spinless Falicov-Kimball model are studied on a
triangular lattice using numerical diagonalization technique with Monte-Carlo simulation
algorithm.…

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