Using magnetoresistance to investigate magnetic interface anisotropy

Autor: K. P. Wellock, M.J. Walker, B. J. Hickey
Rok vydání: 1997
Předmět:
Zdroj: Journal of Applied Physics. 81:4476-4478
ISSN: 1089-7550
0021-8979
DOI: 10.1063/1.364983
Popis: The ability to grow high quality thin metallic layers has brought about the discovery of the giant magnetoresistance (GMR) in multilayers and equally the perpendicular anisotropy exhibited by certain ferromagnetic thin films such as Co. In this article, we will describe magnetoresistance and magneto-optical Kerr effect (MOKE) measurements of molecular beam epitaxy-grown multilayers of Co/Cu(111). It is demonstrated that by controlled doping of the interface between the Co and Cu with submonolayer amounts of Au we are able to increase the magnitude of the GMR. Analysis of MOKE data shows that there is an increase in the perpendicular anisotropy of the Au-doped samples compared to those without Au which can account for the increase in the GMR.
Databáze: OpenAIRE