VI Phonons and Magnetic Excitations of Systems with Strongly Correlated Electrons—Superconductors and Itinerant Electron Magnets—

Abstract

A simple survey of experimental studies ever carried out by means of inelastic neutron scattering is presented mainly on systems with strongly correlated electrons. We can see how much the technique has contributed to the understanding, in a microscopic way, of origins of various physical properties, such as unusual magnetic behavior of itinerant electron systems, high-T_c superconductivity and so on, which are considered to be central issues of the modern solid state science.