with neutron scattering near quantum criticality*

The insulator TmVO₄ have recently been established as a model system to study electronic nematicity near quantum criticality. The material undergoes a continuous ferroquadrupolar transition due to partially filled 4f orbitals of the Tm ions, mediated by long range interactions via the lattice. The transition can be described by the magnetic transverse field Ising model with a crossover to the nematic transverse field Ising model near the quantum critical region. Here we present results from neutron scattering on single crystal and powder samples of the system Tm_1-xY_xVO₄ at various compositions in order to study the effects of disorder on electronic nematicity near a quantum critical point.