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Highly spin-polarized tunneling in fully epitaxial magnetic tunnel junctions using full-Heusler alloy Co2Cr0.6Fe0.4Al thin film and MgO tunnel barrier

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7 Author(s)

In this study, we fabricated fully epitaxial MTJs using a CCFA thin film with an improved film composition and a wedge-shaped MgO tunnel barrier. We then investigated the junctions' TMR characteristics.The high TMR ratios provided direct evidence of the high spin polarization of full-Heusler alloy CCFA thin films. These results confirm the promise of epitaxial Co-based full-Heusler alloy thin films of Co2Cr0.6Fe0.4Al as a source of highly spin-polarized current in spintronic devices.

Published in:

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Date of Conference:

8-12 May 2006