scholarly journals Effect of disorder on the metal-insulator transition of vanadium oxides: Local versus global effects

2015 ◽  
Vol 91 (20) ◽  
Author(s):  
Juan Gabriel Ramirez ◽  
Thomas Saerbeck ◽  
Siming Wang ◽  
J. Trastoy ◽  
M. Malnou ◽  
...  
Keyword(s):  
Vanadium Oxides ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Effect Of Disorder

Observation of a Pseudogap in the Vicinity of the Metal–Insulator Transition in the Perovskite-type Vanadium Oxides Nd1−xSrxVO3

2018 ◽  
Vol 87 (2) ◽  
pp. 024708
Author(s):  
Shintaro Yamamoto ◽  
Daiki Ootsuki ◽  
Daiya Shimonaka ◽  
Daisuke Shibata ◽  
Kenjiro Kodera ◽  
...  
Keyword(s):  
Vanadium Oxides ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Perovskite Type

scholarly journals On the Problem of Metal-Insulator Transitions in Vanadium Oxides

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
A. L. Pergament ◽  
G. B. Stefanovich ◽  
N. A. Kuldin ◽  
A. A. Velichko
Keyword(s):  
Vanadium Oxides ◽  
Insulator Transition ◽  
Temperature Transition ◽  
Metal Insulator Transition ◽  
Doped Semiconductors ◽  
Metal Insulator ◽  
Metal Compounds ◽  
Vanadium Sesquioxide ◽  
Paramagnetic Metal ◽  
Heavily Doped

The problem of metal-insulator transition is considered. It is shown that the Mott criterion aB(nc)1/3≈0.25 is applicable not only to heavily doped semiconductors but also to many other materials, including some transition-metal compounds, such as vanadium oxides (particularly, VO2 and V2O3). The low-temperature transition (“paramagnetic metal—antiferromagnetic insulator”) in vanadium sesquioxide is described on the basis of this concept in terms of an intervening phase, between metal and insulator states, with divergent dielectric constant and effective charge carrier mass. Recent communications concerning a possible “metal-insulator transition” in vanadium pentoxide are also discussed.

Fermi-surface reconstruction close to a pressure-induced metal-insulator transition

2004 ◽  
Vol 114 ◽  
pp. 277-281 ◽  
Author(s):  
J. Wosnitza ◽  
J. Hagel ◽  
O. Stockert ◽  
C. Pfleiderer ◽  
J. A. Schlueter ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Surface Reconstruction ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Fermi Surface Reconstruction
Sign in / Sign up

Export Citation Format

Share Document