Interfacial tuning of perpendicular magnetic anisotropy and spin magnetic moment in CoFe/Pd multilayers

Duc-The Ngo, Z. L. Meng, T. Tahmasebi, X. Yu, E. Thoeng, L. H. Yeo, A. Rusydi, G. C. Han, K-L Teo

Research output: Contribution to journalJournal articleResearchpeer-review


We report on a strong perpendicular magnetic anisotropy in [CoFe 0.4 nm/Pd t](6) (t=1.0-2.0 nm) multilayers fabricated by DC sputtering in an ultrahigh vacuum chamber. Saturation magnetization, M-s, and uniaxial anisotropy, K-u, of the multilayers decrease with increasing the spacing thickness; with a M-s of 155 emu/cc and a K-u of 1.14 x 10(5) J/m(3) at a spacing thickness of t=2 nm. X-ray absorption spectroscopy and X-ray magnetic circular dichroism measurements reveal that spin and orbital magnetic moments of Co and Fe in CoFe film decrease as a function of Pd thickness, indicating the major contribution of surface/interfacial magnetism to the magnetic properties of the film. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Pages (from-to)42-46
Number of pages5
Publication statusPublished - 2014
Externally publishedYes


  • Magnetic multilayers
  • Perpendicular magnetic anisotropy
  • Magnetic domains and domain walls
  • Interfacial magnetism
  • X-ray magnetic circular dischroism
  • Cobalt
  • Magnetic anisotropy
  • Magnetic domains
  • Magnetic moments
  • X ray absorption spectroscopy
  • Multilayers
  • DC sputtering
  • Pd thickness
  • Spin and orbital magnetic moments
  • Spin magnetic moments
  • Ultra-high vacuum chamber
  • Uniaxial anisotropy
  • X-ray magnetic circular dichroism
  • cond-mat.mes-hall cond-mat.mtrl-sci

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