This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1016/j.jmmm.2004.09.054 in citations.
Enhanced exchange bias in ferromagnet/antiferromagnet multilayers
Enhanced exchange bias in ferromagnet/antiferromagnet multilayers
We study a series of NiFe (10.0 nm)/[Ir-20 Mn-80 (6.0 nm)/Co80Fe20 (3.0 nm)](N) multilayers with different numbers N of bilayers grown by DC magnetron sputtering. After field-cooling, SQUID and MOKE measurements show a sizable increase of the exchange bias field with N. X-ray specular and diffuse sc...
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Personal Name(s): | Paul, A. |
---|---|
Bürgler, D. E. / Grünberg, P. A. | |
Contributing Institute: |
Elektronische Eigenschaften; IFF-IEE Center of Nanoelectronic Systems for Information Technology; CNI Streumethoden; IFF-ISM |
Published in: | Journal of magnetism and magnetic materials, 286 (2005) S. 216 - 219 |
Imprint: |
Amsterdam
North-Holland Publ. Co.
2005
|
Physical Description: |
216 - 219 |
DOI: |
10.1016/j.jmmm.2004.09.054 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Journal of Magnetism and Magnetic Materials
286 |
Subject (ZB): | |
Publikationsportal JuSER |
We study a series of NiFe (10.0 nm)/[Ir-20 Mn-80 (6.0 nm)/Co80Fe20 (3.0 nm)](N) multilayers with different numbers N of bilayers grown by DC magnetron sputtering. After field-cooling, SQUID and MOKE measurements show a sizable increase of the exchange bias field with N. X-ray specular and diffuse scattering data reveal no significant variation of the lateral correlation length and only a weak dependence of the vertical rms interface roughness on N. Atomic and magnetic force microscopy, however, show a strong reduction of the grain size accompanied by distinct changes of the magnetic domain structure. We conclude that the enhancement of the exchange bias effect is related to the shrinking of the domain size in the antiferromagnet due to the structural evolution in the multilayers. (C) 2004 Elsevier B.V. All rights reserved. |