Journal Article

PreJuSER-5466

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Embedded Green-function approach to the ballistic electron transport through an interface

Wortmann, D.FZJ* ; Ishida, H. ; Blügel, S.FZJ*

2002
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/1327  doi:10.1103/PhysRevB.66.075113

Abstract: We present an efficient method for calculating the conductance of ballistic electrons through an interface from first principles using the embedding approach of Inglesfield. In our method the Landauer-Buttiker formula for ballistic transport is expressed in terms of two quantities that are available in the embedded Green-function formalism without additional calculations. One is the embedding potential of bulk crystals on both sides of the interface and the other is the Green function in the interface region. As a proof of principle we calculate on the basis of the density-functional theory the spin-resolved electron transmission through a model system of ferromagnetic Co monolayers sandwiched between bulk Cu crystals. The relationship between our formulation and the Green-function formulation of Baranger and Stone is discussed.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Theorie I (IFF-TH-I)
2. Elektronische Eigenschaften (IFF-IEE)

Research Program(s):

1. Kondensierte Materie (M02)

Appears in the scientific report 2002
Notes: This version is available at the following Publisher URL: http://prb.aps.org

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