%0 Conference Proceedings %T Effect of disorder on the density of states of a two-dimensional electron gas under magnetic field %+ Groupe d'étude des semiconducteurs (GES) %A Bonifacie, S. %A Meziani, Ym %A Chaubet, Christophe %A Jouault, Benoit %A Raymond, Andre %< avec comité de lecture %Z GES:04-035 %( PHYSICA B-CONDENSED MATTER %( PHYSICA B-CONDENSED MATTER %B 7th International Symposium on Research in High Magnetic Fields %C Toulouse (FRANCE), France %V 346 %P 455-459 %8 2003-07-20 %D 2003 %K two-dimensional electron gas %K disorder %K TWO-DIMENSIONAL SYSTEM %K QUANTUM TRANSPORT %K RANGE SCATTERERS %K LOCALIZATION %K HETEROSTRUCTURES %K TRANSITION %Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Conference papers %X We have calculated the density of states (DOS) of a two-dimensional electron gas in a perpendicular magnetic field, using a multiple scattering method, in the ultraquantum limit. We have considered doped and disordered 2D systems. The results of the scattering method are compared with direct simulations of disordered samples. Using the DOS, we have studied the metal-insulator transition and the magnetic freeze-out including a comparison with experimental results. (C) 2004 Elsevier B.V. All rights reserved. %G English %L hal-00544448 %U https://hal.science/hal-00544448 %~ CNRS %~ UNIV-MONTP2 %~ GES %~ UNIV-MONTPELLIER %~ UM1-UM2