| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1664484 | Thin Solid Films | 2015 | 5 Pages |
Abstract
We report magnetic coupling behaviors in M-type Sr-hexaferrite (SrM)/Fe bilayers. A magnetic hardening of a Fe layer by a SrM layer is clearly observed when the thickness of the Fe layer is less than 3 nm, and the magnetically hardened 3 nm Fe layer shows a coercivity of SrM layer. The magnetic hardening of Fe layer can be switched into a magnetic softening of SrM layer in SrM/Fe bilayer when an interfacial crystallinity of Fe layer is improved by vacuum annealing at 250-300 °C. The controllable magnetic hardening and softening in SrM/Fe bilayer could be promising for both hard magnetic and soft magnetic applications.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Young-Min Kang, Jong-Bong Park, Young Jae Kang, Kyunghan Ahn,