Category: 4. Physics

Analysis of J–V curves

In the early works^56,57, A. Rose determined that the two requirements have to be fulfilled in order to observe space charge limited currents in low conducting materials: (i) at least one of the contact must be ohmic (i.e….

As shown by Fig. 1a, the crystal structure of YbMnBi₂ falls into a tetragonal system, whose space group is P4/nmm. There are two types of Bi atoms: type I forms nearest-neighbors of Mn atoms while type II constitutes an interlayer. The Néel…

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…