‘Giant’ magnetoresistance in obliquely co-evaporated Co-Ag films

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Lodder, J.C. and Haan, P. de and Kranenburg, H. van (1993) ‘Giant’ magnetoresistance in obliquely co-evaporated Co-Ag films. Journal of Magnetism and Magnetic Materials, 128 (1-2). pp. 219-228. ISSN 0304-8853

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Abstract:Magnetoresistance (MR) measurements at room temperature have been performed on obliquely (co-) evaporated Ag-Co films deposited at room- and elevated-temperatures. The ‘giant’ magnetoresistance ratio (max. 13% for a composition of about Co35Ag65) over a wide range of compositions has been measured. The films are polycrystalline and grown in a columnar morphology. The columnar diameter depends on the thickness and is < 20 nm at 400 nm thickness. From XRD, NMR and saturation magnetization (Ms) vs. at% Ag, one can conclude that the films consist of Co-Co and Ag-Ag clusters. The coercivity depends on the thickness of the films (100–700 nm) and varies from 5 to 15 kA/m.
Item Type:Article
Copyright:© 1993 Elsevier Science
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/15490
Official URL:http://dx.doi.org/10.1016/0304-8853(93)90879-7
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