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Electron scattering mechanisms in giant magnetoresistance computed by the LACO full‐potential method
Author(s) -
Nesbet R. K.
Publication year - 1994
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560520811
Subject(s) - scattering , electrical resistivity and conductivity , magnetoresistance , condensed matter physics , superlattice , giant magnetoresistance , electron , valence (chemistry) , electron scattering , valence electron , chemistry , materials science , physics , magnetic field , optics , quantum mechanics , organic chemistry
The linearized atomic‐cell orbital ( LACO ) method for local density functional calculations has been implemented in a program package for energy bands and valence shell energies of regular periodic solids. This method has been used to compute spin‐dependent electrical resistivity due to scattering by displaced interface atoms in a layered CuCo superlattice. The magnetoresistance ratio Δ R/R (⇈) obtained for this scattering mechanism is 25.03. When the computed interface resistivity is weighted by estimated interpenetration concentration and combined with bulk resistivity, Δ R/R reduces to the expected experimental magnitude for adjacent CuCoCu layers. © 1994 John Wiley & Sons, Inc.