Magnetism, non-Fermi-liquid behavior and deconfinement in Kondo lattices

TL;DR

This paper develops a unified theoretical model for Kondo lattices that captures Fermi-liquid, fractionalized Fermi-liquid, and magnetic states, analyzing their thermodynamic and transport properties.

Contribution

It introduces a comprehensive hybridization model that accounts for magnetic ordering and fractionalization in Kondo lattices, integrating charge and magnetic fluctuations.

Findings

Describes Fermi-liquid and fractionalized states within a unified framework

Analyzes specific heat and resistivity contributions in different phases

Provides insights into non-Fermi-liquid behavior and deconfinement phenomena

Abstract

A formulation of the effective hybridization model is developed which describes Fermi-liquid Kondo and fractionalized Fermi-liquid (deconfinement spin-liquid-like) states with account of possible magnetic ordering. A unified consideration of charge and magnetic fluctuation is performed within perturbation theory in hybridization and within gauge field treatment. The corresponding contributions to specific heat and resistivity are compared.