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Carbon: A Bane for Giant Magnetoresistance Magnetic Multilayers



D X. Yang, H D. Chopra, B Shashishekar, P J. Chen, William F. Egelhoff Jr.


This study reports the highly deleterious role of small amount of carbon on the structure and magnetic properties of giant magnetoresistance NiO-Co-Cu-based spin valves. Controlled incorporation of 1-3 atomic % carbon in the Co/Cu layers, resulting in the formation of pinholes, and associated degradation of structure-sensitive magnetic properties. In addition, carbon promotes the formation of a high density of stacking faults in the Co/Cu layers, with carbon nanoprecipitates forming in the vicinity of the stacking faults. Results have implications for other multilayers and magnetoelectronics devices.
Applied Physics Letters
No. 16


carbon giant magnetoresistance, cooper cobalt, stacking faults


Yang, D. , Chopra, H. , Shashishekar, B. , Chen, P. and Egelhoff Jr., W. (2002), Carbon: A Bane for Giant Magnetoresistance Magnetic Multilayers, Applied Physics Letters (Accessed April 19, 2024)
Created March 31, 2002, Updated October 12, 2021