Magnetization and magnetostriction processes in Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0)

W.D. Armstrong

doi:10.1063/1.364235

Magnetization and magnetostriction processes in Tb_(0.27-0.30)Dy_(0.73-0.70)Fe_(1.9-2.0)

W.D. Armstrong

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

Abstract

The present analysis provides Tb_(0.27-0.30)Dy_(0.73-0.70)Fe_(1.9-2.0) magnetization and magnetostriction states during applied magnetic field and stress processes by minimizing the total magnetic free energy in the presence of a parameter selected inverse exponential magnetic free energy distribution. A comparison between experimental and model results shows that the model provides a qualitatively accurate description of the magnetostriction and magnetization in Tb_(0.27-0.30)Dy_(0.73-0.70)Fe_(1.9-2.0) during applied magnetic field processes for a range of constant uniaxial applied stresses. Therefore, the model appears to be a useful tool for the analysis of Tb_(0.27-0.30)Dy_(0.73-0.70)Fe_(1.9-2.0) applications with constant stress or strain dependent stress states. Furthermore, the good qualitative agreement between model and experiment supports the contention that the magnetostriction and magnetization response of Tb_(0.27-0.30)Dy_(0.73-0.70)Fe_(1.9-2.0) is influenced by a defect induced defocusing of local magnetization direction about the average magnetization direction.

Original language	English
Journal	Journal of Applied Physics
Volume	81
Issue number	5
Pages (from-to)	2321-2326
ISSN	0021-8979
DOIs	https://doi.org/10.1063/1.364235
Publication status	Published - 1997

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title = "Magnetization and magnetostriction processes in Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0)",

abstract = "The present analysis provides Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) magnetization and magnetostriction states during applied magnetic field and stress processes by minimizing the total magnetic free energy in the presence of a parameter selected inverse exponential magnetic free energy distribution. A comparison between experimental and model results shows that the model provides a qualitatively accurate description of the magnetostriction and magnetization in Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) during applied magnetic field processes for a range of constant uniaxial applied stresses. Therefore, the model appears to be a useful tool for the analysis of Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) applications with constant stress or strain dependent stress states. Furthermore, the good qualitative agreement between model and experiment supports the contention that the magnetostriction and magnetization response of Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) is influenced by a defect induced defocusing of local magnetization direction about the average magnetization direction. ",

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AU - Armstrong, W.D.

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N2 - The present analysis provides Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) magnetization and magnetostriction states during applied magnetic field and stress processes by minimizing the total magnetic free energy in the presence of a parameter selected inverse exponential magnetic free energy distribution. A comparison between experimental and model results shows that the model provides a qualitatively accurate description of the magnetostriction and magnetization in Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) during applied magnetic field processes for a range of constant uniaxial applied stresses. Therefore, the model appears to be a useful tool for the analysis of Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) applications with constant stress or strain dependent stress states. Furthermore, the good qualitative agreement between model and experiment supports the contention that the magnetostriction and magnetization response of Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) is influenced by a defect induced defocusing of local magnetization direction about the average magnetization direction.

AB - The present analysis provides Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) magnetization and magnetostriction states during applied magnetic field and stress processes by minimizing the total magnetic free energy in the presence of a parameter selected inverse exponential magnetic free energy distribution. A comparison between experimental and model results shows that the model provides a qualitatively accurate description of the magnetostriction and magnetization in Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) during applied magnetic field processes for a range of constant uniaxial applied stresses. Therefore, the model appears to be a useful tool for the analysis of Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) applications with constant stress or strain dependent stress states. Furthermore, the good qualitative agreement between model and experiment supports the contention that the magnetostriction and magnetization response of Tb(0.27-0.30)Dy(0.73-0.70)Fe(1.9-2.0) is influenced by a defect induced defocusing of local magnetization direction about the average magnetization direction.

KW - Industrielle materialer

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