Two-channel analysis of CPP-MR data for Ag/Co and AgSn/Co multilayers

We present a 2-channel model for the magnetoresistance of a magnetic multilayer with the current flowing perpendicular to the layer planes (CPP-MR), and show that the model fits previous data on Ag/Co and new data on AgSn/Co multilayers better than our previous simple series resistance model. The 2-...

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Veröffentlicht in:	Journal of magnetism and magnetic materials 1993, Vol.118 (1), p.L1-L5
Hauptverfasser:	Lee, S.-F., Pratt, W.P., Yang, Q., Holody, P., Loloee, R., Schroeder, P.A., Bass, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronic transport phenomena in thin films and low-dimensional structures Exact sciences and technology Metals. Metallurgy Physics
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Zusammenfassung:	We present a 2-channel model for the magnetoresistance of a magnetic multilayer with the current flowing perpendicular to the layer planes (CPP-MR), and show that the model fits previous data on Ag/Co and new data on AgSn/Co multilayers better than our previous simple series resistance model. The 2-channel model supports the conclusions previously reached for Ag/Co, and permits a determination of the spin-orientation-dependent parameters α Co = 2.9(+0.5, -0.3) and α Ag/ Co = 12(+5, -2).
ISSN:	0304-8853
DOI:	10.1016/0304-8853(93)90147-T