Correlating transmission and local electronic structure in planar junctions: A tool for analyzing transport calculations

P. Bose, P. Zahn, I. Mertig, and J. Henk
Phys. Rev. B 83, 174451 – Published 31 May 2011

Abstract

We propose to correlate transmittance maps and spectral-density maps of planar junctions, in order to analyze quantitatively and in detail spin-dependent transport calculations. Since spectral-density maps can be resolved with respect to atom, angular momentum, and spin, the resulting correlation coefficients provide strong evidence of, e. g., which layers or which orbitals determine the tunnel conductances. Our method can be used for transport calculations within the Landauer-Büttiker formalism. Its properties and features will be discussed by means of a pure bcc Fe(001) lead as well as an extensively studied Fe(001)/MgO/Fe(001) magnetic tunnel junction.

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  • Received 23 December 2010

DOI:https://doi.org/10.1103/PhysRevB.83.174451

©2011 American Physical Society

Authors & Affiliations

P. Bose1,*, P. Zahn2, I. Mertig1,2, and J. Henk1

  • 1Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Saale), Germany
  • 2Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, D-06099 Halle (Saale), Germany

  • *pbose@mpi-halle.de

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Issue

Vol. 83, Iss. 17 — 1 May 2011

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