scholarly journals From the zero-field metal-insulator transition in two dimensions to the quantum Hall transition: A percolation-effective-medium theory

2001 ◽  
Vol 63 (7) ◽  
Author(s):  
Yigal Meir
Keyword(s):  
Effective Medium Theory ◽  
Quantum Hall ◽  
Effective Medium ◽  
Two Dimensions ◽  
Insulator Transition ◽  
Zero Field ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Medium Theory

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 Nonchiral edge states at the chiral metal-insulator transition in disordered quantum Hall wires

2005 ◽  
Vol 72 (3) ◽  
Author(s):  
Alexander Struck ◽  
Bernhard Kramer ◽  
Tomi Ohtsuki ◽  
Stefan Kettemann
Keyword(s):  
Quantum Hall ◽  
Insulator Transition ◽  
Edge States ◽  
Metal Insulator Transition ◽  
Metal Insulator

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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