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 in | Surface and interface analysis Vol. 26; no. 1; pp. 30 - 38 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Chichester, UK
John Wiley & Sons, Ltd
01.01.1998
Wiley |
Subjects | |
Online Access | Get full text |
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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. |
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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 |