Low coercivity giant magnetoresistance with perpendicular magnetic anisotropy

Jeong Seop Lee; Jungbum Yoon; Mool Bit Kang; Chun Yeol You

doi:10.1016/j.jmmm.2014.01.050

Low coercivity giant magnetoresistance with perpendicular magnetic anisotropy

Jeong Seop Lee
, Jungbum Yoon
, Mool Bit Kang
, Chun Yeol You

Department of Physics and Chemistry

Inha University

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

3 Scopus citations

Abstract

We find the perpendicular magnetic anisotropy giant magnetoresistance structure, whose coercivity is less than 10 Oe. We reveal that the coercivity of free layer can be smaller than 5 Oe in Co/Pd/Cu/[Co/Pd]₄ multilayer structure with a TiO₂ seed layer. The TiO₂ seed layer plays a critical role in the small coercivity of free layer. The GMR ratio is around 1-1.8% for the out-of-plane magnetic fields, and the maximum MR sensitivity of 0.12%/Oe is achieved.

Original language	English
Pages (from-to)	159-162
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	358-359
DOIs	https://doi.org/10.1016/j.jmmm.2014.01.050
State	Published - May 2014

Bibliographical note

Funding Information:
This work is supported by 2014 INHA research grant.

Keywords

Co/Pd multilayer
Giant magnetoresistance
Low coercivity
Perpendicular magnetic anisotropy
Wheel speed sensor

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10.1016/j.jmmm.2014.01.050

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@article{f85eb4c0afcf4ed8b085e57f7814cc40,

title = "Low coercivity giant magnetoresistance with perpendicular magnetic anisotropy",

abstract = "We find the perpendicular magnetic anisotropy giant magnetoresistance structure, whose coercivity is less than 10 Oe. We reveal that the coercivity of free layer can be smaller than 5 Oe in Co/Pd/Cu/[Co/Pd]4 multilayer structure with a TiO2 seed layer. The TiO2 seed layer plays a critical role in the small coercivity of free layer. The GMR ratio is around 1-1.8\% for the out-of-plane magnetic fields, and the maximum MR sensitivity of 0.12\%/Oe is achieved.",

keywords = "Co/Pd multilayer, Giant magnetoresistance, Low coercivity, Perpendicular magnetic anisotropy, Wheel speed sensor",

author = "Lee, \{Jeong Seop\} and Jungbum Yoon and Kang, \{Mool Bit\} and You, \{Chun Yeol\}",

note = "Funding Information: This work is supported by 2014 INHA research grant. ",

year = "2014",

month = may,

doi = "10.1016/j.jmmm.2014.01.050",

language = "English",

volume = "358-359",

pages = "159--162",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Low coercivity giant magnetoresistance with perpendicular magnetic anisotropy

AU - Lee, Jeong Seop

AU - Yoon, Jungbum

AU - Kang, Mool Bit

AU - You, Chun Yeol

N1 - Funding Information: This work is supported by 2014 INHA research grant.

PY - 2014/5

Y1 - 2014/5

N2 - We find the perpendicular magnetic anisotropy giant magnetoresistance structure, whose coercivity is less than 10 Oe. We reveal that the coercivity of free layer can be smaller than 5 Oe in Co/Pd/Cu/[Co/Pd]4 multilayer structure with a TiO2 seed layer. The TiO2 seed layer plays a critical role in the small coercivity of free layer. The GMR ratio is around 1-1.8% for the out-of-plane magnetic fields, and the maximum MR sensitivity of 0.12%/Oe is achieved.

AB - We find the perpendicular magnetic anisotropy giant magnetoresistance structure, whose coercivity is less than 10 Oe. We reveal that the coercivity of free layer can be smaller than 5 Oe in Co/Pd/Cu/[Co/Pd]4 multilayer structure with a TiO2 seed layer. The TiO2 seed layer plays a critical role in the small coercivity of free layer. The GMR ratio is around 1-1.8% for the out-of-plane magnetic fields, and the maximum MR sensitivity of 0.12%/Oe is achieved.

KW - Co/Pd multilayer

KW - Giant magnetoresistance

KW - Low coercivity

KW - Perpendicular magnetic anisotropy

KW - Wheel speed sensor

UR - https://www.scopus.com/pages/publications/84894159707

U2 - 10.1016/j.jmmm.2014.01.050

DO - 10.1016/j.jmmm.2014.01.050

M3 - Article

AN - SCOPUS:84894159707

SN - 0304-8853

VL - 358-359

SP - 159

EP - 162

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

ER -

Low coercivity giant magnetoresistance with perpendicular magnetic anisotropy

Abstract

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Keywords

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