Epitaxial growth and interfacial magnetism of spin aligner for remanent spin injection: [Fe/Tb]n /Fe/MgO/GaAs -light emitting diode as a prototype system

E. Schuster, R. A. Brand, F. Stromberg, Fang-Yuh Lo, A. Ludwig, D. Reuter, A. D. Wieck, S. Hövel, N. C. Gerhardt, M. R. Hofmann, H. Wende, W. Keune

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

We have successfully grown and characterized [Fe/Tb]10 /Fe (001) / 57Fe (001) /MgO (001) multilayer contacts on a GaAs-based light emitting diode. Using 57Fe conversion-electron Mössbauer spectroscopy at room temperature (RT) and at 4.2 K, we provide atomistic proof of large perpendicular Fe spin components in zero external field at and below RT at the 57Fe (001) /MgO (001) interface. Further, indirect evidence of large interfacial Fe atomic moments is provided. Our contacts serve as a prototype spin aligner for remanent electrical spin injection at RT.

Original languageEnglish
Article number063902
JournalJournal of Applied Physics
Volume108
Issue number6
DOIs
Publication statusPublished - 2010 Sep 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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