Figure 2: Energy dependence of the INS intensity for YbMgGaO4.
From: Nearest-neighbour resonating valence bonds in YbMgGaO4
The excitation continuum was probed with the incident neutron energy of 5.5 meV (a) and 2.3 meV (b). Black arrows show the lower boundary (gap energy) of the spin-wave excitations in the fully polarized state. This boundary is determined as the energy, where the high-temperature (35 K, 0 T) INS intensity crosses the low-temperature (0.1 K, 8.5 T) one. Error bars on INS data indicate one standard error propagated from neutron counts (using Horace-Matlab), and all measured Q space is integrated.
