Category: 4. Physics

Dynamics in chiral Heisenberg criticality

A typical model hosting Dirac QCP belonging to chiral Heisenberg universality class is the Hubbard model on the half-filled honeycomb lattice with the Hamiltonian^{42,46,47,48,49}

Figure 3 a presents the temperature dependence of resistivity (see also Supplementary Figs. S1 and S2) for LaRu₃Si₂, focusing on the low-temperature range, measured at ambient pressure and under applied pressures up to 38 GPa. At ambient…