Polarized neutron and X-ray reflectivity study of the structure and exchange coupling of permalloy(Ni80Fe20)/Cr/permalloy trilayers

Kuan Li Yu; Ming Zhe Lin; Chih Hao Lee; C. A. Ku; J. C.A. Huang; S. G.E. Te Velthuis

doi:10.1016/S0921-4526(03)00284-9

Polarized neutron and X-ray reflectivity study of the structure and exchange coupling of permalloy(Ni₈₀Fe₂₀)/Cr/permalloy trilayers

Kuan Li Yu, Ming Zhe Lin, Chih Hao Lee, C. A. Ku, J. C.A. Huang, S. G.E. Te Velthuis

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

3 Citations (Scopus)

Abstract

The magnetic coupling between two permalloy layers with a Cr separating layer was studied using LMOKE, polarized neutron reflectivity and XRD. The coupling between two permalloy layers is antiferromagnetic-like when the Cr thickness is near 2.0 nm along the easy axis. A strong biquadratic coupling term has been found from the polarized neutron reflectivity study. The strong biquadratic coupling may be caused by the rough interface between the permalloy and Cr layers. The missing GMR effect of this system might be due to this strong biquadratic coupling of permalloy layers.

Original language	English
Pages (from-to)	151-156
Number of pages	6
Journal	Physica B: Condensed Matter
Volume	336
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-4526(03)00284-9
Publication status	Published - 2003 Aug
Event	Proceedings of the 7th SXNS - Lake Tahoe, CA, United States Duration: 2002 Sept 23 → 2002 Sept 27

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(03)00284-9

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@article{197e38ed5b0040669adc48ce6ae6d3c3,

title = "Polarized neutron and X-ray reflectivity study of the structure and exchange coupling of permalloy(Ni80Fe20)/Cr/permalloy trilayers",

abstract = "The magnetic coupling between two permalloy layers with a Cr separating layer was studied using LMOKE, polarized neutron reflectivity and XRD. The coupling between two permalloy layers is antiferromagnetic-like when the Cr thickness is near 2.0 nm along the easy axis. A strong biquadratic coupling term has been found from the polarized neutron reflectivity study. The strong biquadratic coupling may be caused by the rough interface between the permalloy and Cr layers. The missing GMR effect of this system might be due to this strong biquadratic coupling of permalloy layers.",

author = "Yu, {Kuan Li} and Lin, {Ming Zhe} and Lee, {Chih Hao} and Ku, {C. A.} and Huang, {J. C.A.} and {Te Velthuis}, {S. G.E.}",

note = "Funding Information: The hospitality of SRRC operating TLS is gratefully acknowledged. This work was supported by the National Science Council of the Republic of China under Contract No. NSC90-2112-M-007-053. Work at Argonne was supported by the US Department of Energy, Basic Energy Sciences-Materials Sciences, under Contact #W-31-109-ENG-38.; Proceedings of the 7th SXNS ; Conference date: 23-09-2002 Through 27-09-2002",

year = "2003",

month = aug,

doi = "10.1016/S0921-4526(03)00284-9",

language = "English",

volume = "336",

pages = "151--156",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Polarized neutron and X-ray reflectivity study of the structure and exchange coupling of permalloy(Ni80Fe20)/Cr/permalloy trilayers

AU - Yu, Kuan Li

AU - Lin, Ming Zhe

AU - Lee, Chih Hao

AU - Ku, C. A.

AU - Huang, J. C.A.

AU - Te Velthuis, S. G.E.

N1 - Funding Information: The hospitality of SRRC operating TLS is gratefully acknowledged. This work was supported by the National Science Council of the Republic of China under Contract No. NSC90-2112-M-007-053. Work at Argonne was supported by the US Department of Energy, Basic Energy Sciences-Materials Sciences, under Contact #W-31-109-ENG-38.

PY - 2003/8

Y1 - 2003/8

N2 - The magnetic coupling between two permalloy layers with a Cr separating layer was studied using LMOKE, polarized neutron reflectivity and XRD. The coupling between two permalloy layers is antiferromagnetic-like when the Cr thickness is near 2.0 nm along the easy axis. A strong biquadratic coupling term has been found from the polarized neutron reflectivity study. The strong biquadratic coupling may be caused by the rough interface between the permalloy and Cr layers. The missing GMR effect of this system might be due to this strong biquadratic coupling of permalloy layers.

AB - The magnetic coupling between two permalloy layers with a Cr separating layer was studied using LMOKE, polarized neutron reflectivity and XRD. The coupling between two permalloy layers is antiferromagnetic-like when the Cr thickness is near 2.0 nm along the easy axis. A strong biquadratic coupling term has been found from the polarized neutron reflectivity study. The strong biquadratic coupling may be caused by the rough interface between the permalloy and Cr layers. The missing GMR effect of this system might be due to this strong biquadratic coupling of permalloy layers.

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U2 - 10.1016/S0921-4526(03)00284-9

DO - 10.1016/S0921-4526(03)00284-9

M3 - Conference article

AN - SCOPUS:0037732813

SN - 0921-4526

VL - 336

SP - 151

EP - 156

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 1-2

T2 - Proceedings of the 7th SXNS

Y2 - 23 September 2002 through 27 September 2002

ER -

Polarized neutron and X-ray reflectivity study of the structure and exchange coupling of permalloy(Ni₈₀Fe₂₀)/Cr/permalloy trilayers

Abstract

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