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

fYear

2002

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/INTMAG.2002.1000842

Filename

1000842