Magnetic-field- and pressure-induced quantum phases in complex materials.

This Progress Report presents temperature-, magnetic-field-, and pressure- dependent Raman measurements of strongly correlated materials such as the charge-ordering manganese perovskites, the multiferroic material TbMnO3, and the charge-density wave (CDW) materials 1T-TiSe2 and Cu(x)Tise(2). These studies illustrate the rich array of phases and properties that can be accessed with field and pressure tuning in these materials, and demonstrate the efficacy of using magnetic-field- and pressure-dependent scattering methods to elucidate the microscopic changes associated with highly tunable behavior in complex materials.