High-resolution X-ray photoelectron spectroscopy on giant magnetoresistive CoAg granular films sandwiched between Pt layers

The chemical state of Co, Ag and Pt in giant magnetoresistive CoAg granular films sandwiched between Pt layers is studied using high‐resolution x‐ray photoelectron spectroscopy. Measurements were carried out as a function of depth for samples deposited at different temperatures and containing differ...

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Published inSurface and interface analysis Vol. 26; no. 1; pp. 30 - 38
Main Authors Gester, M., Matthew, J. A. D., Thompson, S. M., Ounadjela, K., Beamson, G.
Format Journal Article
LanguageEnglish
Published Chichester, UK John Wiley & Sons, Ltd 01.01.1998
Wiley
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Summary:The chemical state of Co, Ag and Pt in giant magnetoresistive CoAg granular films sandwiched between Pt layers is studied using high‐resolution x‐ray photoelectron spectroscopy. Measurements were carried out as a function of depth for samples deposited at different temperatures and containing different amounts of Co. In all samples Ag is found to segregate at the surface to form an AgPt alloy. The depth profiles are consistent with the deposited Co concentration modified by preferential sputtering. No variation of the chemical state for Co or Ag in the CoAg layer is found for different deposition conditions. However, small amounts of Pt do affect the Co 3d electrons. © 1998 John Wiley & Sons, Ltd.
Bibliography:EPSRC
istex:DE55B54A31D392B5ECCCF97B184F1F7824165499
ArticleID:SIA344
ark:/67375/WNG-K27C3P54-0
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0142-2421
1096-9918
DOI:10.1002/(SICI)1096-9918(199801)26:1<30::AID-SIA344>3.0.CO;2-E