CPP transport properties of Ni/Ru and Co90Fe10Cu interfaces

Do Kyun Kim; Yeon Sub Lee; Hoang Yen Thi Nguyen; Rakhi Acharyya; Reza Loloee; Kyung Ho Shin; Young Keun Kim; Byoung Chul Min; W. P. Pratt; Jack Bass

doi:10.1109/TMAG.2010.2045223

CPP transport properties of Ni/Ru and Co₉₀Fe₁₀Cu interfaces

Do Kyun Kim
, Yeon Sub Lee
, Hoang Yen Thi Nguyen
, Rakhi Acharyya
, Reza Loloee
, Kyung Ho Shin
, Young Keun Kim
, Byoung Chul Min
, W. P. Pratt
, Jack Bass^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

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, γ_F/N, for the ferromagnetic/non-magnetic (F/N) pairs Ni/Ru and Co₉₀Fe₁₀Cu. For Ni/Ru, we find 2AR_Ni/Ru*= 1.7_-0.3^+0.4 Ω², similar to the value for Fe/Cr, but we estimate γ_Ni/Ru=0.15\pm 0.03, much smaller than the value for Fe/Cr or the asymmetry found for Ni(Ru) alloys. For Co ₉₀Fe₁₀ we find 2AR_CoFe/Cu*=1.1\pm 0.2 and γ_CoFe/Cu=0.8\pm 0.1 , both similar to the values for Co/Cu.

Original language	English
Article number	5467633
Pages (from-to)	1374-1377
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	46
Issue number	6
DOIs	https://doi.org/10.1109/TMAG.2010.2045223
Publication status	Published - 2010 Jun

Bibliographical note

Funding Information:
This research was supported in part by KIST, KRCF DRC, and by US NSF grant DMR 08-04126.

Keywords

CPP transport
CoFe/Cu
Giant magnetoresistance
Interfaces
Ni/Ru

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2010.2045223

Cite this

@article{939ade50d6074cba9f126f12a4ac8526,

title = "CPP transport properties of Ni/Ru and Co90Fe10Cu interfaces",

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 Co90Fe10Cu. For Ni/Ru, we find 2ARNi/Ru*= 1.7-0.3+0.4 Ω2, similar to the value for Fe/Cr, but we estimate γNi/Ru=0.15\textbackslash{}pm 0.03, much smaller than the value for Fe/Cr or the asymmetry found for Ni(Ru) alloys. For Co 90Fe10 we find 2ARCoFe/Cu*=1.1\textbackslash{}pm 0.2 and γCoFe/Cu=0.8\textbackslash{}pm 0.1 , both similar to the values for Co/Cu.",

keywords = "CPP transport, CoFe/Cu, Giant magnetoresistance, Interfaces, Ni/Ru",

author = "Kim, \{Do Kyun\} and Lee, \{Yeon Sub\} and Nguyen, \{Hoang Yen Thi\} and Rakhi Acharyya and Reza Loloee and Shin, \{Kyung Ho\} and Kim, \{Young Keun\} and Min, \{Byoung Chul\} and Pratt, \{W. P.\} and Jack Bass",

note = "Funding Information: This research was supported in part by KIST, KRCF DRC, and by US NSF grant DMR 08-04126.",

year = "2010",

month = jun,

doi = "10.1109/TMAG.2010.2045223",

language = "English",

volume = "46",

pages = "1374--1377",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "6",

}

TY - JOUR

T1 - CPP transport properties of Ni/Ru and Co90Fe10Cu interfaces

AU - Kim, Do Kyun

AU - Lee, Yeon Sub

AU - Nguyen, Hoang Yen Thi

AU - Acharyya, Rakhi

AU - Loloee, Reza

AU - Shin, Kyung Ho

AU - Kim, Young Keun

AU - Min, Byoung Chul

AU - Pratt, W. P.

AU - Bass, Jack

N1 - Funding Information: This research was supported in part by KIST, KRCF DRC, and by US NSF grant DMR 08-04126.

PY - 2010/6

Y1 - 2010/6

N2 - 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 Co90Fe10Cu. For Ni/Ru, we find 2ARNi/Ru*= 1.7-0.3+0.4 Ω2, similar to the value for Fe/Cr, but we estimate γNi/Ru=0.15\pm 0.03, much smaller than the value for Fe/Cr or the asymmetry found for Ni(Ru) alloys. For Co 90Fe10 we find 2ARCoFe/Cu*=1.1\pm 0.2 and γCoFe/Cu=0.8\pm 0.1 , both similar to the values for Co/Cu.

AB - 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 Co90Fe10Cu. For Ni/Ru, we find 2ARNi/Ru*= 1.7-0.3+0.4 Ω2, similar to the value for Fe/Cr, but we estimate γNi/Ru=0.15\pm 0.03, much smaller than the value for Fe/Cr or the asymmetry found for Ni(Ru) alloys. For Co 90Fe10 we find 2ARCoFe/Cu*=1.1\pm 0.2 and γCoFe/Cu=0.8\pm 0.1 , both similar to the values for Co/Cu.

KW - CPP transport

KW - CoFe/Cu

KW - Giant magnetoresistance

KW - Interfaces

KW - Ni/Ru

UR - https://www.scopus.com/pages/publications/77952837457

U2 - 10.1109/TMAG.2010.2045223

DO - 10.1109/TMAG.2010.2045223

M3 - Article

AN - SCOPUS:77952837457

SN - 0018-9464

VL - 46

SP - 1374

EP - 1377

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 6

M1 - 5467633

ER -