A ferromagnetic insulating substrate for the epitaxial growth of topological insulators

  title={A ferromagnetic insulating substrate for the epitaxial growth of topological insulators},
  author={H. Ji and R. Stokes and L. D. Alegria and E. Blomberg and M. Tanatar and A. A. Reijnders and L. Schoop and T. Liang and R. Prozorov and K. Burch and N. P. Ong and J. Petta and R. Cava},
  journal={Journal of Applied Physics},
  • H. Ji, R. Stokes, +10 authors R. Cava
  • Published 2013
  • Materials Science
  • Journal of Applied Physics
  • Cr2Ge2Te6 is proposed as an insulating ferromagnetic substrate for the growth of tetradymite-type topological insulators, based on a refined characterization of its transport, magnetic, optical, and calculated electronic properties. It is found to be a soft ferromagnet with no visible magnetic domains over relatively large length scales and to be highly insulating with an indirect band gap and low carrier concentration. Further we present the fabrication of Bi2Te3-Cr2Ge2Te6 heterostructure… CONTINUE READING
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