Interlayer exchange coupling of Fe/Y multilayers

Yasushi Endo; Daisuke Takama; Masahiko Yamamoto; Tomoyoshi Suenobu; Shunichi Fukuzumi

doi:10.1143/jjap.42.l291

Interlayer exchange coupling of Fe/Y multilayers

Yasushi Endo, Daisuke Takama, Masahiko Yamamoto, Tomoyoshi Suenobu, Shunichi Fukuzumi

Department of Chemistry & Nanoscience

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

3 Scopus citations

Abstract

We have investigated the interlayer exchange coupling in Fe (3.0 nm)/Y (t_Y nm) multilayers at the range of Y layer thickness (t_Y) from 0.4 to 4.0nm by a vibrating sample magnetometer (VSM) and a ferromagnetic resonance (FMR). The coupling changes from antiferromagnetic (AFM) to non-coupled state with an increase of t_Y. The coupling constant (J₁) in each AFM coupled Fe/Y multilayer can be evaluated, and the maximum value of J₁ is found to be about -0.1 erg/cm² at t_Y = 0.8 nm. The AFM state is considered to occur across the pure Y layer and the Fe-Y mixing layer formed at the Fe/Y interface.

Original language	English
Pages (from-to)	L291-L293
Journal	Japanese Journal of Applied Physics
Volume	42
Issue number	3 B
DOIs	https://doi.org/10.1143/jjap.42.l291
State	Published - 15 Mar 2003

Keywords

Antiferromagnetic coupling
Fe-Y mixing layer
Fe/Y multilayer
Interlayer exchange coupling
Pure Y layer

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title = "Interlayer exchange coupling of Fe/Y multilayers",

abstract = "We have investigated the interlayer exchange coupling in Fe (3.0 nm)/Y (tY nm) multilayers at the range of Y layer thickness (tY) from 0.4 to 4.0nm by a vibrating sample magnetometer (VSM) and a ferromagnetic resonance (FMR). The coupling changes from antiferromagnetic (AFM) to non-coupled state with an increase of tY. The coupling constant (J1) in each AFM coupled Fe/Y multilayer can be evaluated, and the maximum value of J1 is found to be about -0.1 erg/cm2 at tY = 0.8 nm. The AFM state is considered to occur across the pure Y layer and the Fe-Y mixing layer formed at the Fe/Y interface.",

keywords = "Antiferromagnetic coupling, Fe-Y mixing layer, Fe/Y multilayer, Interlayer exchange coupling, Pure Y layer",

author = "Yasushi Endo and Daisuke Takama and Masahiko Yamamoto and Tomoyoshi Suenobu and Shunichi Fukuzumi",

year = "2003",

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day = "15",

doi = "10.1143/jjap.42.l291",

language = "English",

volume = "42",

pages = "L291--L293",

journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

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TY - JOUR

T1 - Interlayer exchange coupling of Fe/Y multilayers

AU - Endo, Yasushi

AU - Takama, Daisuke

AU - Yamamoto, Masahiko

AU - Suenobu, Tomoyoshi

AU - Fukuzumi, Shunichi

PY - 2003/3/15

Y1 - 2003/3/15

N2 - We have investigated the interlayer exchange coupling in Fe (3.0 nm)/Y (tY nm) multilayers at the range of Y layer thickness (tY) from 0.4 to 4.0nm by a vibrating sample magnetometer (VSM) and a ferromagnetic resonance (FMR). The coupling changes from antiferromagnetic (AFM) to non-coupled state with an increase of tY. The coupling constant (J1) in each AFM coupled Fe/Y multilayer can be evaluated, and the maximum value of J1 is found to be about -0.1 erg/cm2 at tY = 0.8 nm. The AFM state is considered to occur across the pure Y layer and the Fe-Y mixing layer formed at the Fe/Y interface.

AB - We have investigated the interlayer exchange coupling in Fe (3.0 nm)/Y (tY nm) multilayers at the range of Y layer thickness (tY) from 0.4 to 4.0nm by a vibrating sample magnetometer (VSM) and a ferromagnetic resonance (FMR). The coupling changes from antiferromagnetic (AFM) to non-coupled state with an increase of tY. The coupling constant (J1) in each AFM coupled Fe/Y multilayer can be evaluated, and the maximum value of J1 is found to be about -0.1 erg/cm2 at tY = 0.8 nm. The AFM state is considered to occur across the pure Y layer and the Fe-Y mixing layer formed at the Fe/Y interface.

KW - Antiferromagnetic coupling

KW - Fe-Y mixing layer

KW - Fe/Y multilayer

KW - Interlayer exchange coupling

KW - Pure Y layer

UR - http://www.scopus.com/inward/record.url?scp=0038022861&partnerID=8YFLogxK

U2 - 10.1143/jjap.42.l291

DO - 10.1143/jjap.42.l291

M3 - Letter

AN - SCOPUS:0038022861

SN - 0021-4922

VL - 42

SP - L291-L293

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 3 B

ER -

Interlayer exchange coupling of Fe/Y multilayers

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