Magnetic Properties of (Sm, Tb)FeCo/Cr/TbFeCo Trilayers with Perpendicular Anisotropy

Xiang Wang; Shenwei Su; Xuemei Yu; Zhong You; Bo Cai

doi:10.1016/S1002-0721(07)60076-3

Magnetic Properties of (Sm, Tb)FeCo/Cr/TbFeCo Trilayers with Perpendicular Anisotropy

Xiang Wang^*
, Shenwei Su
, Xuemei Yu
, Zhong You
, Bo Cai

^*Corresponding author for this work

School of Electronic and Information Engineering

Beihang University

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

1 Scopus citations

Abstract

A series of (Sm, Tb)FeCo/Cr/TbFeCo trilayers with perpendicular anisotropy was prepared by RF magnetron sputtering, and the effect of Cr interlayer thickness on magnetic properties and interlayer exchange coupling was investigated. All the samples showed strong out-of-plane anisotropy but their hysteresis loops displayed two types: single-phase and double-phase, indicating that interlayer exchange coupling and magnetic properties varied with the thickness of Cr interlayer. Both saturation field H_s and (1-M_r/M_s) curves indicated that interlayer exchange coupling oscillated between antiferromagnetic and ferromagnetic with a period of 1.6 nm, and the oscillation strength attenuated with increasing Cr interlayer thickness. After being annealed at 450 °C for 25 min, the hysteresis loops of all the samples became single-phase type and coercivity H_c decreased greatly, which could be attributed to the decrease of effective anisotropy in (Sm, TbFeCo) grains.

Original language	English
Pages (from-to)	215-219
Number of pages	5
Journal	Journal of Rare Earths
Volume	25
Issue number	2
DOIs	https://doi.org/10.1016/S1002-0721(07)60076-3
State	Published - Apr 2007

Keywords

TbFeCo film
interlayer exchange coupling
rare earths
uniaxial anisotropy

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10.1016/S1002-0721(07)60076-3

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@article{79e95399e55a4139bae23e54c9c98564,

title = "Magnetic Properties of (Sm, Tb)FeCo/Cr/TbFeCo Trilayers with Perpendicular Anisotropy",

abstract = "A series of (Sm, Tb)FeCo/Cr/TbFeCo trilayers with perpendicular anisotropy was prepared by RF magnetron sputtering, and the effect of Cr interlayer thickness on magnetic properties and interlayer exchange coupling was investigated. All the samples showed strong out-of-plane anisotropy but their hysteresis loops displayed two types: single-phase and double-phase, indicating that interlayer exchange coupling and magnetic properties varied with the thickness of Cr interlayer. Both saturation field Hs and (1-Mr/Ms) curves indicated that interlayer exchange coupling oscillated between antiferromagnetic and ferromagnetic with a period of 1.6 nm, and the oscillation strength attenuated with increasing Cr interlayer thickness. After being annealed at 450 °C for 25 min, the hysteresis loops of all the samples became single-phase type and coercivity Hc decreased greatly, which could be attributed to the decrease of effective anisotropy in (Sm, TbFeCo) grains.",

keywords = "TbFeCo film, interlayer exchange coupling, rare earths, uniaxial anisotropy",

author = "Xiang Wang and Shenwei Su and Xuemei Yu and Zhong You and Bo Cai",

year = "2007",

month = apr,

doi = "10.1016/S1002-0721(07)60076-3",

language = "英语",

volume = "25",

pages = "215--219",

journal = "Journal of Rare Earths",

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}

TY - JOUR

T1 - Magnetic Properties of (Sm, Tb)FeCo/Cr/TbFeCo Trilayers with Perpendicular Anisotropy

AU - Wang, Xiang

AU - Su, Shenwei

AU - Yu, Xuemei

AU - You, Zhong

AU - Cai, Bo

PY - 2007/4

Y1 - 2007/4

N2 - A series of (Sm, Tb)FeCo/Cr/TbFeCo trilayers with perpendicular anisotropy was prepared by RF magnetron sputtering, and the effect of Cr interlayer thickness on magnetic properties and interlayer exchange coupling was investigated. All the samples showed strong out-of-plane anisotropy but their hysteresis loops displayed two types: single-phase and double-phase, indicating that interlayer exchange coupling and magnetic properties varied with the thickness of Cr interlayer. Both saturation field Hs and (1-Mr/Ms) curves indicated that interlayer exchange coupling oscillated between antiferromagnetic and ferromagnetic with a period of 1.6 nm, and the oscillation strength attenuated with increasing Cr interlayer thickness. After being annealed at 450 °C for 25 min, the hysteresis loops of all the samples became single-phase type and coercivity Hc decreased greatly, which could be attributed to the decrease of effective anisotropy in (Sm, TbFeCo) grains.

AB - A series of (Sm, Tb)FeCo/Cr/TbFeCo trilayers with perpendicular anisotropy was prepared by RF magnetron sputtering, and the effect of Cr interlayer thickness on magnetic properties and interlayer exchange coupling was investigated. All the samples showed strong out-of-plane anisotropy but their hysteresis loops displayed two types: single-phase and double-phase, indicating that interlayer exchange coupling and magnetic properties varied with the thickness of Cr interlayer. Both saturation field Hs and (1-Mr/Ms) curves indicated that interlayer exchange coupling oscillated between antiferromagnetic and ferromagnetic with a period of 1.6 nm, and the oscillation strength attenuated with increasing Cr interlayer thickness. After being annealed at 450 °C for 25 min, the hysteresis loops of all the samples became single-phase type and coercivity Hc decreased greatly, which could be attributed to the decrease of effective anisotropy in (Sm, TbFeCo) grains.

KW - TbFeCo film

KW - interlayer exchange coupling

KW - rare earths

KW - uniaxial anisotropy

UR - https://www.scopus.com/pages/publications/34249300135

U2 - 10.1016/S1002-0721(07)60076-3

DO - 10.1016/S1002-0721(07)60076-3

M3 - 文章

AN - SCOPUS:34249300135

SN - 1002-0721

VL - 25

SP - 215

EP - 219

JO - Journal of Rare Earths

JF - Journal of Rare Earths

IS - 2

ER -

Magnetic Properties of (Sm, Tb)FeCo/Cr/TbFeCo Trilayers with Perpendicular Anisotropy

Abstract

Keywords

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