Publications by authors named "Maria Chatzieleftheriou"
Article Synopsis
- Understanding the physics of the single-orbital Hubbard model is crucial for grasping how metal-insulator transitions occur in real materials, particularly in the intermediate-coupling regime.
- Recent advanced techniques have helped analyze the spectral function in this intermediate regime, clarifying how antiferromagnetic fluctuations and local electronic correlations contribute to forming an insulating state.
- The study delineates the distinct Slater and Heisenberg regimes of the phase diagram, highlighting a crossover region where competing spatial and local electronic correlations affect the local magnetic moment and the overall insulating state.
We demonstrate that a finite-doping quantum critical point (QCP) naturally descends from the existence of a first-order Mott transition in the phase diagram of a strongly correlated material. In a prototypical case of a first-order Mott transition the surface associated with the equation of state for the homogeneous system is "folded" so that in a range of parameters stable metallic and insulating phases exist and are connected by an unstable metallic branch. Here we show that tuning the chemical potential, the zero-temperature equation of state gradually unfolds.
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