MR characteristics of synthetic ferrimagnet based spin-valves with different pinning layer thickness ratios

Ki Seok Moon; Joo Chan Kim; Jae Chul Ro; E. Y. Shong; Seong Rae Lee; Young Keun Kim

doi:10.1109/20.908608

MR characteristics of synthetic ferrimagnet based spin-valves with different pinning layer thickness ratios

Ki Seok Moon, Joo Chan Kim, Jae Chul Ro, E. Y. Shong, Seong Rae Lee, Young Keun Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

The dependence of magnetoresistance (MR) ratio and pinning characteristics on the two pinning layer thicknesses, in synthetic ferrimagnetic (SF) structure (P2/Ru/P1/AF), was investigated. The pinning field decreased monotonically when Δt (= t_P2 - t_P1) = 0 while it has its maximum at a specific t_P2 when Δt (= t_P2 - t_P1) ≠ 0 as t_P2 increased. MR ratio reached its maximum at a specific t_P2 as t_P2 increased. In the case of the fixed t_P2, pinning field decreased whereas MR ratio increased as Δt increased. This trend is also found when the total thickness of P1 and P2 is fixed so that the current shunting to synthetic ferrimagnet (SF) trilayer is fixed. Both strong pinning field and sufficient MR ratio could be obtained by selecting appropriate Δt under the constraint of constant total thickness of SF trilayer.

Original language	English
Pages (from-to)	2857-2859
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	36
Issue number	5 I
DOIs	https://doi.org/10.1109/20.908608
Publication status	Published - 2000 Sept
Event	2000 International Magnetics Conference (INTERMAG 2000) - Toronto, Ont, Canada Duration: 2000 Apr 9 → 2000 Apr 12

Keywords

Giant magnetoresistance
Pinning field
Spin-valve
Synthetic ferrimagnet

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/20.908608

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title = "MR characteristics of synthetic ferrimagnet based spin-valves with different pinning layer thickness ratios",

abstract = "The dependence of magnetoresistance (MR) ratio and pinning characteristics on the two pinning layer thicknesses, in synthetic ferrimagnetic (SF) structure (P2/Ru/P1/AF), was investigated. The pinning field decreased monotonically when Δt (= tP2 - tP1) = 0 while it has its maximum at a specific tP2 when Δt (= tP2 - tP1) ≠ 0 as tP2 increased. MR ratio reached its maximum at a specific tP2 as tP2 increased. In the case of the fixed tP2, pinning field decreased whereas MR ratio increased as Δt increased. This trend is also found when the total thickness of P1 and P2 is fixed so that the current shunting to synthetic ferrimagnet (SF) trilayer is fixed. Both strong pinning field and sufficient MR ratio could be obtained by selecting appropriate Δt under the constraint of constant total thickness of SF trilayer.",

keywords = "Giant magnetoresistance, Pinning field, Spin-valve, Synthetic ferrimagnet",

author = "Moon, {Ki Seok} and Kim, {Joo Chan} and Ro, {Jae Chul} and Shong, {E. Y.} and Lee, {Seong Rae} and Kim, {Young Keun}",

year = "2000",

month = sep,

doi = "10.1109/20.908608",

language = "English",

volume = "36",

pages = "2857--2859",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

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note = "2000 International Magnetics Conference (INTERMAG 2000) ; Conference date: 09-04-2000 Through 12-04-2000",

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TY - JOUR

T1 - MR characteristics of synthetic ferrimagnet based spin-valves with different pinning layer thickness ratios

AU - Moon, Ki Seok

AU - Kim, Joo Chan

AU - Ro, Jae Chul

AU - Shong, E. Y.

AU - Lee, Seong Rae

AU - Kim, Young Keun

PY - 2000/9

Y1 - 2000/9

N2 - The dependence of magnetoresistance (MR) ratio and pinning characteristics on the two pinning layer thicknesses, in synthetic ferrimagnetic (SF) structure (P2/Ru/P1/AF), was investigated. The pinning field decreased monotonically when Δt (= tP2 - tP1) = 0 while it has its maximum at a specific tP2 when Δt (= tP2 - tP1) ≠ 0 as tP2 increased. MR ratio reached its maximum at a specific tP2 as tP2 increased. In the case of the fixed tP2, pinning field decreased whereas MR ratio increased as Δt increased. This trend is also found when the total thickness of P1 and P2 is fixed so that the current shunting to synthetic ferrimagnet (SF) trilayer is fixed. Both strong pinning field and sufficient MR ratio could be obtained by selecting appropriate Δt under the constraint of constant total thickness of SF trilayer.

AB - The dependence of magnetoresistance (MR) ratio and pinning characteristics on the two pinning layer thicknesses, in synthetic ferrimagnetic (SF) structure (P2/Ru/P1/AF), was investigated. The pinning field decreased monotonically when Δt (= tP2 - tP1) = 0 while it has its maximum at a specific tP2 when Δt (= tP2 - tP1) ≠ 0 as tP2 increased. MR ratio reached its maximum at a specific tP2 as tP2 increased. In the case of the fixed tP2, pinning field decreased whereas MR ratio increased as Δt increased. This trend is also found when the total thickness of P1 and P2 is fixed so that the current shunting to synthetic ferrimagnet (SF) trilayer is fixed. Both strong pinning field and sufficient MR ratio could be obtained by selecting appropriate Δt under the constraint of constant total thickness of SF trilayer.

KW - Giant magnetoresistance

KW - Pinning field

KW - Spin-valve

KW - Synthetic ferrimagnet

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U2 - 10.1109/20.908608

DO - 10.1109/20.908608

M3 - Conference article

AN - SCOPUS:0034260890

SN - 0018-9464

VL - 36

SP - 2857

EP - 2859

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5 I

T2 - 2000 International Magnetics Conference (INTERMAG 2000)

Y2 - 9 April 2000 through 12 April 2000

ER -

MR characteristics of synthetic ferrimagnet based spin-valves with different pinning layer thickness ratios

Abstract

Keywords

ASJC Scopus subject areas

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