Spintronics pp 271-284 | Cite as

Characterization of the Surface Electronic Properties of Co2Cr1−xFexAl

  • Jan-Peter Wüstenberg
  • Martin Aeschlimann
  • Mirko Cinchetti


Due to their half metallic properties and high Curie temperatures Heusler alloys are potential key materials for future application in spin-based devices. One crucial aspect for device performance is the electron spin polarization at surfaces and interfaces, which in general deviates from bulk values due to the different bonding environment. Here, we present spin-resolved photoemission data on surfaces of Co2Cr1−xFexAl thin films. The influence of bulk and surface contributions on the spin-resolved spectra is discussed for x=0, x=0.4 and x=1, yielding information on disorder, surface states and calculation schemes that are consistent with our spin-resolved photoemission experiments.


Fermi Energy Spin Polarization Heusler Alloy Surface Unit Cell Bulk Band Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by the Research Center OPTIMAS and the DFG Forschergruppe through DFG FG559 “New materials with high spin polarization” (project P10). We would like to thank C. Herbort and M. Jourdan for preparation of the samples and G.H. Fecher for supporting us with the band structure data. B. Krenzer is acknowledged for discussion about the interpretation of LEED patterns; R. Fetzer and J. Fischer are acknowledged for experimental assistance.


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Jan-Peter Wüstenberg
    • 1
  • Martin Aeschlimann
    • 1
  • Mirko Cinchetti
    • 1
  1. 1.Department of Physics and Research Center OPTIMASUniversity of KaiserslauternKaiserslauternGermany

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