Magnetic Field as an Important Tool in Exploring the Strongly Correlated Fermi Systems and Their Particle–Hole and Time-Reversal Asymmetries

In this review, we consider the impact of magnetic field on properties strongly correlated heavy-fermion compounds such as metals and frustrated insulators with quantum spin liquid. Magnetic B can be considered a universal tool, allowing exploration physics controlling remarkable compounds. These vivid are T/B scaling, exhibited under application at fixed temperature T, emergence Landau Fermi liquid behavior field. We analyze influence quasiparticle–hole asymmetry (HF) scaling thermopower S/T B. show that is demonstrated by different HF β-YbAlB4, YbRh2Si2, layered cobalt oxide [BiBa0.66K0.36O2]CoO2. Analyzing violated antiferromagnetic phase (AF) transition. The residual resistivity ρ0 density states N0 experience jumps AF transition, causing two in its sign reversal. Our consideration based flattening single-particle spectrum affects leads to violation particle–hole symmetry. generates asymmetrical part Δσd(V) tunneling differential conductivity σd(V), Δσd(V)=σd(V)−σd(−V), where V voltage bias. demonstrate presence field, vanishes, LFL restored, disappears. calculations mentioned compounds, fermion condensation theory, good agreement experiment support our conclusion theory capable describing including those