Magnetoresistance and thermal stability enhancement in FeCr-based spin valves

Rachid Sbiaa, Haruyuki Morita

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Abstract

The enhancement of the magnetoresistance, the pinning field strength, and thermal stability in a synthetic spin valve (SV) where a thin FeCr layer inserted in the pinned layer closer to the antiferromagnetic layer, was analyzed. The improvement of 18% in magnetoresistance ratio (MR) and 1700 Oe in a pinned field was observed when single SVs with 1-nm thick FeCr inserted in the pinned layers. Using a nano-oxide layer and spin filtering the high MR in all-metal single SV was indicated without specular scattering. The results shoe that the FeCr also effects on minimizing Mn diffusion into pinned layer and spacer by the increase of the pinning field.

Original languageEnglish
Pages (from-to)5139-5141
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number25
DOIs
Publication statusPublished - Jun 21 2004

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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