The two-spin model with dipolar interactions for the exchange coupled composite media

D. Vokoun; T. Rahman; H. C. Hou; C. H. Lai; M. Beleggia

doi:10.1063/1.2833841

The two-spin model with dipolar interactions for the exchange coupled composite media

D. Vokoun, T. Rahman, H. C. Hou, C. H. Lai, M. Beleggia

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

Abstract

We study exchange coupled composite (ECC) media where both the hard and soft coupled layers possess perpendicular anisotropy or one of the layers is superparamagnetic. Our model is used to demonstrate the effect of the dipolar interactions on the coercive field. A series of ECC samples with various thicknesses of Ru spacer is manufactured and analyzed. The structure of the samples prepared is CoPtCr-Si O2 RuCoPtCr-Si O2, with the composition varied around that of (Co Pt17 Cr10)90 - (Si O2)10. The acquired experimental data are used to illustrate the significance of magnetostatic interactions between the two coupled magnetic layers. © 2008 American Institute of Physics.

Original language	English
Article number	07F520
Journal	Journal of Applied Physics
Volume	103
Issue number	7
ISSN	0021-8979
DOIs	https://doi.org/10.1063/1.2833841
Publication status	Published - 2008
Externally published	Yes

Keywords

Dipole moment
Exchange coupling
Exchange interactions
Magnetic anisotropy
Magnetostatics
Mathematical models
Spin dynamics
Superparamagnetism
Composite materials
T
X

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title = "The two-spin model with dipolar interactions for the exchange coupled composite media",

abstract = "We study exchange coupled composite (ECC) media where both the hard and soft coupled layers possess perpendicular anisotropy or one of the layers is superparamagnetic. Our model is used to demonstrate the effect of the dipolar interactions on the coercive field. A series of ECC samples with various thicknesses of Ru spacer is manufactured and analyzed. The structure of the samples prepared is CoPtCr-Si O2 RuCoPtCr-Si O2, with the composition varied around that of (Co Pt17 Cr10)90 - (Si O2)10. The acquired experimental data are used to illustrate the significance of magnetostatic interactions between the two coupled magnetic layers. {\textcopyright} 2008 American Institute of Physics.",

keywords = "Dipole moment, Exchange coupling, Exchange interactions, Magnetic anisotropy, Magnetostatics, Mathematical models, Spin dynamics, Superparamagnetism, Composite materials, T, X",

author = "D. Vokoun and T. Rahman and Hou, {H. C.} and Lai, {C. H.} and M. Beleggia",

year = "2008",

doi = "10.1063/1.2833841",

language = "English",

volume = "103",

journal = "Journal of Applied Physics",

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T1 - The two-spin model with dipolar interactions for the exchange coupled composite media

AU - Vokoun, D.

AU - Rahman, T.

AU - Hou, H. C.

AU - Lai, C. H.

AU - Beleggia, M.

PY - 2008

Y1 - 2008

N2 - We study exchange coupled composite (ECC) media where both the hard and soft coupled layers possess perpendicular anisotropy or one of the layers is superparamagnetic. Our model is used to demonstrate the effect of the dipolar interactions on the coercive field. A series of ECC samples with various thicknesses of Ru spacer is manufactured and analyzed. The structure of the samples prepared is CoPtCr-Si O2 RuCoPtCr-Si O2, with the composition varied around that of (Co Pt17 Cr10)90 - (Si O2)10. The acquired experimental data are used to illustrate the significance of magnetostatic interactions between the two coupled magnetic layers. © 2008 American Institute of Physics.

AB - We study exchange coupled composite (ECC) media where both the hard and soft coupled layers possess perpendicular anisotropy or one of the layers is superparamagnetic. Our model is used to demonstrate the effect of the dipolar interactions on the coercive field. A series of ECC samples with various thicknesses of Ru spacer is manufactured and analyzed. The structure of the samples prepared is CoPtCr-Si O2 RuCoPtCr-Si O2, with the composition varied around that of (Co Pt17 Cr10)90 - (Si O2)10. The acquired experimental data are used to illustrate the significance of magnetostatic interactions between the two coupled magnetic layers. © 2008 American Institute of Physics.

KW - Dipole moment

KW - Exchange coupling

KW - Exchange interactions

KW - Magnetic anisotropy

KW - Magnetostatics

KW - Mathematical models

KW - Spin dynamics

KW - Superparamagnetism

KW - Composite materials

KW - T

KW - X

U2 - 10.1063/1.2833841

DO - 10.1063/1.2833841

M3 - Conference article

SN - 0021-8979

VL - 103

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 7

M1 - 07F520

ER -

The two-spin model with dipolar interactions for the exchange coupled composite media

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Keywords

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