Electronic phase transitions due to correlation effects
Katsnel'son M. I. , Trefilov A. V.
The part of the electron-electron interaction which stems from low-lying excitations of the ion cores and which is ignored in the ordinary band theory can lead to electronic phase transitions accompanied by sharp anomalies in the electronic and lattice properties of metals. Manifestations of these anomalies in transition metals and alloys and also upon electronic phase transitions in cesium are discussed.