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Applied Physics Letters / Volume 88 / Issue 25 / MAGNETISM AND SUPERCONDUCTIVITY

Appl. Phys. Lett. 88, 252511 (2006); http://dx.doi.org/10.1063/1.2216035 (3 pages)

Interface scattering and the tunneling magnetoresistance of Fe(001)/MgO(001)/Fe(001) junctions

M. E. Eames and J. C. Inkson

School of Physics, University of Exeter, Exeter, Devon EX4 4QL, United Kingdom

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(Received 24 March 2006; accepted 22 May 2006; published online 23 June 2006)

We present a model for the transmission coefficient which can be used to calculate the tunneling magnetoresistance for the Fe(001)/MgO(001)/Fe(001) system. It clarifies the role of the interface scattering into various tunneling channels, linking them to the complex band structure of the MgO. This allows a more direct relation to the interpretation of experimental results than previously found, pointing the way to device optimization.

© 2006 American Institute of Physics

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KEYWORDS and PACS

Keywords

iron, magnesium compounds, ferromagnetic materials, tunnelling magnetoresistance, band structure

PACS

  • 75.70.Ak

    Magnetic properties of monolayers and thin films

  • 75.47.-m

    Magnetotransport phenomena; materials for magnetotransport

  • 75.50.Bb

    Fe and its alloys

  • 71.20.-b

    Electron density of states and band structure of crystalline solids

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2216035

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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