Open AccessGIANT MAGNETORESISTANCE EFFECTS OF MAGNETIC MULTILAYERED FILMS SYSTEM
Author(s) -
Zhengchao Dong,
Zhao Shu-Yu
Publication year - 1999
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.48.511
Subject(s) - giant magnetoresistance , condensed matter physics , scattering , impurity , magnetoresistance , bilayer , materials science , quantum , kubo formula , magnetic field , physics , optics , quantum mechanics , membrane , biology , conductivity , genetics
Taking into account the quantum size effects and considering three types of scattering from bulk impurities,rough surfaces and rough interfaces, we use the quantum-statistical Greens function approach and Kubo theory to calculate the giant magnetoresistance (GMR) in magnetic multilayered structures.Our calculations can reproduce the main features of GMR experiment, including the oscillations of GMR with nonmagnetic thickness, and the GMR increases with increasing number of bilayer N of the (Fe/Cr)N/Fe system.Moreover,whether or not additive are the parts of scattering from the impurities, surfaces and interfaces is also discussed.