scholarly journals Percolation-Type Description of the Metal-Insulator Transition in Two Dimensions

1999 ◽  
Vol 83 (17) ◽  
pp. 3506-3509 ◽  
Author(s):  
Yigal Meir
Keyword(s):  
Two Dimensions ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator

The Behavior of the Spin-One-Half Falicov–Kimball Model Close to the Metal–Insulator Transition

1998 ◽  
Vol 12 (26) ◽  
pp. 2709-2716 ◽  
Author(s):  
Pavol Farkašovský
Keyword(s):  
Experimental Data ◽  
Electrical Conductivity ◽  
Exact Diagonalization ◽  
Two Dimensions ◽  
Insulator Transition ◽  
Rare Earth Compounds ◽  
Qualitative Explanation ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Exhaustive Study

The spin-one-half Falicov–Kimball model for electronically driven valence and metal–insulator transitions is studied in one and two dimensions using small-cluster exact-diagonalization calculations. Performing an exhaustive study of the model close to the metal–insulator transition we have found that the spin-one-half Falicov–Kimball model can describe much of experimental data of transition-metal and rare-earth compounds. Particularly, except the discontinuous transitions it can provide the qualitative explanation for all typical behaviors of the electrical conductivity observed experimentally in these materials.

scholarly journals Possible metal-insulator transition atB=0 in two dimensions

1994 ◽  
Vol 50 (11) ◽  
pp. 8039-8042 ◽  
Author(s):  
S. V. Kravchenko ◽  
G. V. Kravchenko ◽  
J. E. Furneaux ◽  
V. M. Pudalov ◽  
M. D’Iorio
Keyword(s):  
Two Dimensions ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator
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