Journal
APPLIED PHYSICS LETTERS
Volume 100, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3681804
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- PREST-JST
- [22246091]
- Grants-in-Aid for Scientific Research [22246091] Funding Source: KAKEN
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A large spin signal (Delta Rs) of 12.8m Omega at room temperature is demonstrated in an all-metallic lateral spin valve (LSV) device comprising of ferromagnetic wire of a highly spin-polarized Co2Fe(Ge0.5Ga0.5) Heusler alloy and a Cu wire. From the results on multi-terminal LSV devices, the origin of the large Delta R-s was concluded to be the high spin polarization of Co2Fe(Ge0.5Ga0.5) and the resultant small spin absorption. The all-metallic LSV device without MgO barrier has low contact resistance, which is considered to be beneficial for a high frequency ultrathin read sensor for the next generation ultrahigh density magnetic recording. (C) 2012 American Institute of Physics. [doi:10.1063/1.3681804]
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