scholarly journals Critical behaviour near the metal-insulator transition of a doped Mott insulator

2001 ◽  
Vol 22 (3) ◽  
pp. 283-290 ◽  
Author(s):  
Y. Ōno ◽  
R. Bulla ◽  
A.C. Hewson ◽  
M. Potthoff
Keyword(s):  
Mott Insulator ◽  
Insulator Transition ◽  
Critical Behaviour ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Doped Mott Insulator

Pressure-induced metal-insulator transition in the spin-orbit Mott insulator Ba2IrO4

2011 ◽  
Vol 84 (11) ◽  
Author(s):  
H. Okabe ◽  
N. Takeshita ◽  
M. Isobe ◽  
E. Takayama-Muromachi ◽  
T. Muranaka ◽  
...  
Keyword(s):  
Mott Insulator ◽  
Insulator Transition ◽  
Spin Orbit ◽  
Metal Insulator Transition ◽  
Metal Insulator

SOLVABLE MODEL OF A METAL-INSULATOR TRANSITION

1990 ◽  
Vol 04 (15n16) ◽  
pp. 2371-2394 ◽  
Author(s):  
R. SHANKAR
Keyword(s):  
Conformal Invariance ◽  
Solvable Model ◽  
Mott Transition ◽  
Mott Insulator ◽  
Scale Factor ◽  
Insulator Transition ◽  
Response Functions ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Half Filling

A solvable model of d = 1 spinless fermions at half-filling which exhibits a Mott transition is studied in detail. Many response functions are computed: at zero and nonzero temperatures, in the insulating and metallic sites, at the transition, and at q ≃ 0, 2k F . Some quantities are computed exactly, others only upto a scale factor. Some results are old, but mentioned here for completeness. Some are rederived using new tools such as conformal invariance. The rest are new. Next, the effect of randomness on the Mott state is explored. It is found, on the basis of Imry-Ma type arguments that no matter how large the gap is, the Mott insulator turns into an Anderson insulator immediately.

Dielectric critical behaviour at a metal–insulator transition under lattice compression

2005 ◽  
Vol 66 (7) ◽  
pp. 1150-1157 ◽  
Author(s):  
Shailesh Shukla ◽  
Deepak Kumar ◽  
Nitya Nath Shukla ◽  
Rajendra Prasad
Keyword(s):  
Insulator Transition ◽  
Critical Behaviour ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Lattice Compression

Pressure-induced metal-insulator transition of the mott insulator Ba2IrO4

2013 ◽  
Vol 63 (3) ◽  
pp. 349-351 ◽  
Author(s):  
Daisuke Orii ◽  
Masafumi Sakata ◽  
Atsushi Miyake ◽  
Katsuya Shimizu ◽  
Hirotaka Okabe ◽  
...  
Keyword(s):  
Mott Insulator ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator
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