Document Type

Article

Publication Date

1-15-1995

Abstract

The linear transport behavior of metallic multilayers is studied by using the real-space Kubo formula, for a model Hamiltonian consisting of zero-range spin-dependent impurity-scattering potentials. The resulting theory allows a direct comparison with the Boltzmann equation approach in the quasiclassical limit, which is expected to be a good approximation for most magnetic multilayers. Furthermore, the regimes for which quantum corrections might be needed are explicitly indicated. It is explicitly shown that: (i) periodicity is not required as a mechanism for giant magnetoresistance, and (ii) the two main geometries, current in the plane of the layers and perpendicular to the plane of the layers, exhibit very different size effects, the latter yielding the so-called series resistor model.

Comments

Article published in Physical Reivew B, 51, pp 1855-1865 (1995).

© 1995 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevB.51.1855

DOI: 10.1103/PhysRevB.51.1855

Download

Included in

Physics Commons

Share

COinS