A Perspective on the Metal-Nonmetal Transition

摘要: Publisher Summary This chapter discusses a model that was proposed 30 years ago deceptive in its simplicity and laid the foundations for much of science underlying metal–nonmetal transition. The apparent problem—to transform metal into nonmetal or insulator, vice versa—belies subtlety complexity this, most fundamental electronic phase transitions condensed matter. Both experimental theoretical has moved toward actual transition between nonmetal, greater degree sophistication constructions. At level advanced treatments, problem disordered interacting electron gas at finite temperature emerged as one central concerns modern-day matter science. highlights continued effectiveness simple physical concepts criteria identifying describing key aspects this quantum It successes can be recorded Goldhammer–Herzfeld prescription metallization. Despite fact criterion is obtained from classical discussions, it yields predictions often agree closely with experiment well estimates elaborate quantum–mechanical calculations. Finally, concludes range number systems traversing are continually increasing.