TY - JOUR
T1 - Effect of spin-dependent interface resistance at (001)-oriented Fe/Ag interface on giant magnetoresistance effect
AU - Jung, Jinwon
AU - Jin, Zhenhu
AU - Shiokawa, Yohei
AU - Sahashi, Masashi
PY - 2015/7/1
Y1 - 2015/7/1
N2 - We experimentally investigated the asymmetric transmission probabilities of spin-up and spin-down electrons at a (001)-Fe/Ag interface, which result in a highly spin-dependent interface resistance (AR∗F/N) that improves the magnetoresistive outputs of giant magnetoresistive devices whose ferromagnetic layers comprise only 3d transitional materials such as FeCo-based alloys. We quantitatively determined the spin-dependent interfacial parameters at FexCo100-x/Ag interfaces that were tuned by varying the Fe concentration x. Among the interfaces, the highest interface resistance of 0.65mωμ2 was obtained with an AR∗F/N of 1.89mωμ2, which corresponds to ARF/N↑∼ 1.08mωμm2 and ARF/N↓∼ 7.98mωμm2 at a (001)-Fe/Ag interface.
AB - We experimentally investigated the asymmetric transmission probabilities of spin-up and spin-down electrons at a (001)-Fe/Ag interface, which result in a highly spin-dependent interface resistance (AR∗F/N) that improves the magnetoresistive outputs of giant magnetoresistive devices whose ferromagnetic layers comprise only 3d transitional materials such as FeCo-based alloys. We quantitatively determined the spin-dependent interfacial parameters at FexCo100-x/Ag interfaces that were tuned by varying the Fe concentration x. Among the interfaces, the highest interface resistance of 0.65mωμ2 was obtained with an AR∗F/N of 1.89mωμ2, which corresponds to ARF/N↑∼ 1.08mωμm2 and ARF/N↓∼ 7.98mωμm2 at a (001)-Fe/Ag interface.
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U2 - 10.7567/APEX.8.073005
DO - 10.7567/APEX.8.073005
M3 - Article
AN - SCOPUS:84936817765
SN - 1882-0778
VL - 8
JO - Applied Physics Express
JF - Applied Physics Express
IS - 7
M1 - 073005
ER -