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Generalising the Anderson model
Author(s) -
Carroll C. E.,
Lukes T.,
Ringwood G. A.
Publication year - 1975
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.2220720205
Subject(s) - simple (philosophy) , anderson impurity model , enhanced data rates for gsm evolution , matrix (chemical analysis) , statistical physics , computer science , algorithm , artificial intelligence , physics , epistemology , quantum mechanics , materials science , philosophy , electron , composite material
An attempt is made to generalise the Anderson approach to localisation in order to handle other forms of disorder. After some discussion an approximate criterion for determining the mobility edge is adopted because it is simple and intuitive. The theory is applied to positional disorder at negative energies using a model derived from the Lloyd matrix expansion. The criterion is used on this model to compare localisation in s‐and p‐states.