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Disorder effects on the properties of two‐dimensional finite systems in perpendicular magnetic field: the tight binding approach
Author(s) -
Aldea A.,
Nitţă M.,
Dinu V.,
Ţolea M.
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200404781
Subject(s) - condensed matter physics , hamiltonian (control theory) , perpendicular , asymmetry , inverse , tight binding , physics , landau quantization , eigenvalues and eigenvectors , magnetism , magnetic field , lattice (music) , quantum mechanics , mathematics , electronic structure , geometry , mathematical optimization , acoustics
We review some aspects concerning the disorder effects on the spectral properties of 2D electronic systems with relevance for the transport and orbital magnetism in perpendicular magnetic field. The lattice model and random Anderson disorder are used. The discussion is carried out separately for periodic and hard wall boundary conditions. The degree of localization is evidenced by the calculation of the inverse participation number of the eigenstates of the Hamiltonian and a striking asymmetry of the localization effect of states in the Landau band is reported. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)