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Spin-memory loss at Co/Ru interfaces
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DOI：10.1103/PhysRevB.84.014425.png)
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We have determined the spin-memory-loss parameter delta(Co/Ru) by measuring the transmission of spin-triplet and spin-singlet Cooper pairs across Co/Ru interfaces in Josephson junctions and by current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) techniques. The probability of spin-memory loss at the Co/Ru interface is [1 - exp(-delta(Co/Ru))]. From the CPP-MR, we obtain delta(Co/Ru) = 0.34(-0.02)(+0.04), which is in good agreement with delta(Co/Ru) = 0.35 +/- 0.08 obtained from spin-triplet transmission. For spin-singlet transmission, we have delta(Co/Ru) = 0.64 +/- 0.05, which is different from that obtained from CPP-GMR and spin-triplet transmission. The source of this difference is not understood.
Keyword:
GIANT MAGNETORESISTANCE
SUPERCONDUCTIVITY
OSCILLATIONS
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3.7
论文数:
15.4W
被引数:
41.0W
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