Title :
Comparison of DSV, BSV and TSV spin valves in CPP geometry
Author :
Gubbins, M. ; O´Neill, D. ; Moore, A. ; McInroy, A. ; Johnston, A.
Author_Institution :
Seagate Technol., Springtown, UK
Abstract :
Summary form only given. Spin valves in the current perpendicular to plane (CPP) configuration are believed to offer increased reader sensitivity for higher areal density magnetic recording. The performance of different types of conventional spin valves in the CPP geometry has been investigated. Dual spin valves (DSVs), top spin valves (TSVs) and bottom spin valves (BSVs) have been built using PtMn as a pinning layer and CoFe as the free layer. Measurements were carried out on the spin valves of different sizes sandwiched between two copper electrodes. The bottom electrode was planarised by chemical mechanical polishing.
Keywords :
chemical mechanical polishing; cobalt alloys; ferromagnetic materials; iron alloys; manganese alloys; platinum alloys; spin valves; BSV spin valves; CPP geometry; DSV spin valves; PtMn-CoFe; TSV spin valves; areal density; bottom spin valves; chemical mechanical polishing; current perpendicular to plane; dual spin valves; magnetic recording; reader sensitivity; top spin valves; Coercive force; Electrodes; Geometry; Magnetic films; Magnetic heads; Scattering; Shape measurement; Spin valves; Through-silicon vias; Voltage;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1000842
