Buffer layer dependence of magnetic anisotropy in Fe films grown GaAs substrate

Yujin Jeong, Hakjoon Lee, Sangyeop Lee, Taehee Yoo, Sanghoon Lee, X. Liu, J. K. Furdyna

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The effect of buffer layer on the magnetic anisotropy of Fe film has been investigated by using the planar Hall effect measurement. The Fe films were grown on four different buffer layers, such as GaAs, ZnSe, ZnTe, and Ge, by molecular beam epitaxy. The field and angle dependent planar Hall effect measurements revealed the presence of two types of magnetic anisotropies, i.e., cubic crystalline anisotropy along the <100> directions and uniaxial anisotropy along the <100> crystallographic directions, in all four Fe films investigated in the study. However, the relative strength of the two types of anisotropies varies significantly depending on the type of buffer layer. Specially, in the Fe film grown on the Ge buffer layer, the uniaxial anisotropy almost disappeared and the entire magnetic anisotropy was dominated by cubic anisotropy with a four-fold symmetry. This suggests that the growth of Fe film on the Ge surface is different from its growth on other surfaces such as GaAs, ZnSe, and ZnTe buffers, where the asymmetric reconstruction process of anions (i.e., As, Se, or Te) is present at the surface.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalSolid State Communications
Publication statusPublished - 2014 Dec

Bibliographical note

Funding Information:
This research was supported by the Converging Research Center Program through the Ministry of Science , ICT and Future Planning ( 2013K000311 ); by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning ( 2013R1A1A2004505 ); by a Korea University Grant ; and by the National Science Foundation Grants DMR10-05851 .

Publisher Copyright:
© 2014 Elsevier Ltd. All rights reserved.


  • A. Ferromagnetism
  • D. Magnetic anisotropy
  • D. Planar Hall effect

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry


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