Tunable coercivity in perpendicular (CoFe/Tb)(n)/CoFe multilayers

Feng J. F. , Kurt H. , Venkatesan M., Coey J. M. D.

THIN SOLID FILMS, vol.520, no.24, pp.7173-7175, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 520 Issue: 24
  • Publication Date: 2012
  • Doi Number: 10.1016/j.tsf.2012.08.026
  • Title of Journal : THIN SOLID FILMS
  • Page Numbers: pp.7173-7175


Magnetic coercivity and anisotropy have been investigated in amorphous Co50Fe50 t/Tb t multilayers with perpendicular anisotropy. The thin CoFe layer does not crystallize when sandwiched between Tb layers. The saturation magnetization M-s (similar to 10(6) A/m) and perpendicular magnetic anisotropy constant K-u (similar to 10(5) J/m(3)) combined with low coercivity mu H-0(c) (10-10(2) mT) have been obtained. These magnetic properties can be tuned. These amorphous multilayers could be designed to suit specific spintronic applications. (C) 2012 Elsevier B.V. All rights reserved.