Abstract
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 language | English |
|---|---|
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 350 |
| Pages (from-to) | 42-46 |
| Number of pages | 5 |
| ISSN | 0304-8853 |
| DOIs | |
| Publication status | Published - 2014 |
| Externally published | Yes |
Keywords
- Magnetic multilayers
- Perpendicular magnetic anisotropy
- Magnetic domains and domain walls
- Interfacial magnetism
- X-ray magnetic circular dischroism
- MATERIALS
- PHYSICS,
- RAY CIRCULAR-DICHROISM
- DOMAIN-WALL
- MAGNETORESISTANCE
- SURFACE
- FILMS
- 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