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Analysis

This paper addresses a fundamental problem in condensed matter physics: understanding strange metals, using heavy fermion systems as a model. It offers a novel field-theoretic approach, analyzing the competition between the Kondo effect and local-moment magnetism from the magnetically ordered side. The significance lies in its ability to map out the global phase diagram and reveal a quantum critical point where the Kondo effect transitions from being destroyed to dominating, providing a deeper understanding of heavy fermion behavior.
Reference

The paper reveals a quantum critical point across which the Kondo effect goes from being destroyed to dominating.

Analysis

This paper investigates the complex interactions between magnetic impurities (Fe adatoms) and a charge-density-wave (CDW) system (1T-TaS2). It's significant because it moves beyond simplified models (like the single-site Kondo model) to understand how these impurities interact differently depending on their location within the CDW structure. This understanding is crucial for controlling and manipulating the electronic properties of these correlated materials, potentially leading to new functionalities.
Reference

The hybridization of Fe 3d and half-filled Ta 5dz2 orbitals suppresses the Mott insulating state for an adatom at the center of a CDW cluster.