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P. PASCARIU1,* , V. GEORGESCU1
In this work we study transfer of spin angular momentum across multilayered granular films composed of ferromagnetic (Co)/diamagnetic (Zn) metals. Magnetoresistance (MR) and spin transfer torque phenomena (STT) were studied for two series of multilayers labeled [Co/Zn]n and [Zn/Co]n, starting with Co and Zn layers, respectively, electrolitically grown onto Cu (100) substrate under identical conditions. The coercivity varied between (145Oe÷208Oe) as a function on the Zn layer thickness, with largest values for the samples starting with Co. The [Co/Zn]n and [Zn/Co]n electrodeposited multilayers display magnetoresistance (14%) effect which can be explained mainly by the exchange interaction among neighbouring layers and by the spatially inhomogeneous magnetic structure of the granular multilayer (favoring spin scattering at interfaces between grains and layers); in addition, the thickness of the Zn interlayer has an important role on the transportation and diffusion processes..
Electrodeposition, Co/Zn multilayers, Structural properties, Magnetic properties, Giant magnetoresistance (GMR).
P. PASCARIU, V. GEORGESCU, Magnetoresistance induced by spin transfer torque in electrodeposited granular multilayers based on Co/Zn system, Optoelectronics and Advanced Materials - Rapid Communications, 5, 8, August 2011, pp.836-841 (2011).
Submitted at: June 30, 2011
Accepted at: Aug. 10, 2011
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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