TY  - JOUR
AU  - Sasioglu, E.
AU  - Caliskan, S.
AU  - Kumru, M.
TI  - Critical behavior of density of states near Fermi energy in     low-dimensional disordered metals
JO  - Physical review / B
VL  - 79
IS  - 3
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-6294
SP  - 035123
PY  - 2009
N1  - Record converted from VDB: 12.11.2012
AB  - We study the effect of electron-electron interaction on the one-particle density of states (DOS) rho((d))(epsilon,T) of low-dimensional disordered metals near Fermi energy within the framework of the finite temperature conventional impurity diagram technique. We consider only diffusive limit and, by a geometric resummation of the most singular first-order self-energy corrections via the Dyson equation, we obtain a nondivergent solution for the DOS at low energies while for higher energies the well-known Altshuler-Aronov corrections are recovered. At the Fermi level rho((d))(epsilon,T=0)-> 0, this indicates that interacting disordered two-dimensional and quasi-one-dimensional systems are in insulating state at zero temperature. The obtained results are in good agreement with recent tunneling experiments on two-dimensional GaAs/AlGaAs heterostructures and quasi-one-dimensional doped multiwall carbon nanotubes.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000262978200058
DO  - DOI:10.1103/PhysRevB.79.035123
UR  - https://juser.fz-juelich.de/record/6294
ER  -