First-principles based semi-classical model for transport in magnetic layered structures

Author

Butler, W.H. ; Zhang, X.-G. ; Maclaren, J.M.

Author_Institution

Div. of Metals & Ceramics, Oak Ridge Nat. Lab., TN, USA

Volume

34

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

927

Lastpage

929

Abstract

We present a first principles based semiclassical model for transport in an inhomogeneous magnetic layered structure. The approach solves the Boltzmann transport equation using the band structure, Bloch wave velocities and scattering matrices, describing the reflection and transmission of Bloch waves from interfaces, derived from ab-initio local spin density electronic structure calculations. The model has been tested for thick Co and Cu films as well as for a set of Co/Cu/Co spin valves

Keywords

Boltzmann equation; ab initio calculations; band structure; cobalt; copper; density functional theory; interface magnetism; interface states; magnetic multilayers; Bloch wave velocities; Boltzmann transport equation; Co-Cu; Co/Cu/Co spin valves; ab-initio local spin density electronic structure calculations; band structure; magnetic layered structures; reflection; scattering matrices; semi-classical model; transmission; transport; Boltzmann equation; Ceramics; Distribution functions; Electrons; Giant magnetoresistance; Laboratories; Physics; Reflection; Scattering; Steady-state;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.706314

Filename

706314