e-journal
Kinetics of Nonlinear Optical Response at Insulator–Metal Transition in Vanadium Dioxide
Phase transitions are ubiquitous in condensed-matter systems,and the investigation of their kinetics is known to be challenging,[ 1–4 ] but the signifi cant discoveries, such as superconductive phase transitions, [ 5 ] ferroelectric and antiferroelectric phase transitions, [ 6 ] amorphous and crystalline transitions, [ 7 ] insulator–metal transitions (IMT), [ 8–13 ] etc., have produced a great deal of interest in the physics community. Insulator–metal
transistors are atypical materials which contain strong electron–electron correlation, and are different from the ordinary theoretical description of metals and insulators that is based on noninteracting or weakly interacting electron systems. [ 14–17 ]The study of the IMT dates back to 1937 when some transitionmetal oxides with partially fi lled d-bands, such as (NiO), were found to be poor conductors and in fact insulators. [ 18 ] The importance of the electron–electron correlation was pointed out by Peierls. [ 19 ] Since then, understanding the nature of strongly
correlated electrons systems and their connection to IMT has undergone a long continuing and controversial history, [ 8,13,20 ] and much theoretical, but nevertheless much experimental progress has been made.
Tidak ada salinan data
Tidak tersedia versi lain