Lifetimes of Excited Electrons In Fe And Ni: First-Principles GW and the T-Matrix Theory

V. P. Zhukov, E. V. Chulkov, and P. M. Echenique
Phys. Rev. Lett. 93, 096401 – Published 23 August 2004; Errata Phys. Rev. Lett. 93, 119902 (2004); Phys. Rev. Lett. 94, 119902 (2005)

Abstract

We present the results of an ab initio calculation of excited electron lifetimes in ferromagnetic materials which incorporates non-spin-flip and spin-flip processes within GW and T-matrix approaches. The method we develop is applied to low-energy electron excitations in Fe and Ni. It is found that the spin-wave generation in Fe essentially reduces the lifetimes of the spin-minority d states whereas the free-electron-like spin-minority states and all the spin-majority states are affected much less. The influence of spin-flip scattering on the lifetimes in Ni appears to be weak. The T-matrix non-spin-flip processes are important for the lifetimes of excited spin-minority states.

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  • Received 26 February 2004
  • Corrected 30 August 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.096401

©2004 American Physical Society

Corrections

30 August 2004

Errata

Authors & Affiliations

V. P. Zhukov1, E. V. Chulkov1,2, and P. M. Echenique1,2

  • 1Donostia International Physics Center (DIPC), 20018 San Sebastián/Donostia, Basque Country, Spain
  • 2Departamento de Física de Materiales and Centro Mixto CSIC-UPV/EHU, Facultad de Ciencias Químicas, UPV/EHU, Apartado 1072, 20080 San Sebastián/Donostia, Basque Country, Spain

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Issue

Vol. 93, Iss. 9 — 27 August 2004

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