Large enhancement of the anomalous Hall effect in Co/Pt multilayers sandwiched by MgO layers

We report a large enhanced anomalous Hall effect (AHE) in the Co/Pt multilayers sandwiched by two MgO layers. The Hall resistivity ([rho]xy) was over an order of magnitude larger than that in pure Co/Pt multilayers. By optimizing the thickness of MgO layers, a high field sensitivity value of 2445 V/...

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Dades bibliogràfiques
Autors principals: Zhang, S, Teng, J, Zhang, J, Liu, Y, Li, J, Yu, G, Wang, S
Format: Journal article
Idioma:English
Publicat: American Institute of Physics 2010
Descripció
Sumari:We report a large enhanced anomalous Hall effect (AHE) in the Co/Pt multilayers sandwiched by two MgO layers. The Hall resistivity ([rho]xy) was over an order of magnitude larger than that in pure Co/Pt multilayers. By optimizing the thickness of MgO layers, a high field sensitivity value of 2445 V/A T for Hall sensors was achieved. The enhancement of AHE is mainly attributed to the MgO-Pt interfacial effect.