CPP Transport Properties of Ni/Ru and Co90Fe10/Cu Interfaces

Title
CPP Transport Properties of Ni/Ru and Co90Fe10/Cu Interfaces
Authors
김도균이연섭Nguyen, Hoang Yen ThAcharyya, RakhiLoloee, Reza신경호Kim, Young Keun민병철Pratt Jr. , W. P.Bass, Jack
Keywords
CoFe/Cu; CPP transport; giant magnetoresistance; interfaces; Ni/Ru
Issue Date
2010-06
Publisher
IEEE transactions on magnetics
Citation
VOL 46, NO 6, 1374-1377
Abstract
Using current-perpendicular-to-plane (CPP) magnetoresistance measurements, we derive values of twice the enhanced interface resistance, 2AR*F/N, and the interface scattering asymmetry, γF/N, for the ferromagnetic/non-magnetic (F/N) pairs Ni/Ru and Co90Fe10/Cu. For Ni/Ru, we find 2AR*Ni/Ru = 1.7+0.4-0.3 fΩ㎡, similar to the value for Fe/Cr, but we estimate │γNi/Ru│ = 0.15 ± 0.03, much smaller than the value for Fe/Cr or the asymmetry found for Ni(Ru) alloys. For Co90Fe10 we find 2AR*CoFe/Cu = 1.1 ± 0.2 and γCoFe/Cu = 0.8 ± 0.1, both similar to the values for Co/Cu.
URI
http://pubs.kist.re.kr/handle/201004/45583
ISSN
0018-9464
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KIST Publication > Article
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