A magnetic equation of state

R. Street; P. G. McCormick; L. Folks

doi:10.1016/0304-8853(92)90837-E

A magnetic equation of state

R. Street
, P. G. McCormick
, L. Folks

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

27 Scopus citations

Abstract

In general, the intensity of magnetization, M, is dependent on both magnetic field, H, and on time and may be described in terms of a constitutive equation, or equation of state as dH = (1/χ)dM + Λd In M, where 1/χ = π{variant}H/π{variant}M{norm of matrix}_Ṁ and Λ = π{variant}H/π{variant} In Ṁ{norm of matrix}_M. Measurements have been made on Pr₁₅Fe₇₇B₈ from which values of Λ and χ as functions of M are derived using the constitutive equation. It is shown that χ is a function of M but is independent of Ṁ. At room temperature Λ = (86.0±1.4) Oe over the magnetization range + 300 to -500 G.

Original language	English (US)
Pages (from-to)	368-370
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	104-107
Issue number	PART 1
DOIs	https://doi.org/10.1016/0304-8853(92)90837-E
State	Published - Feb 2 1992
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/0304-8853(92)90837-E

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@article{ef6dfcfccb71455e9d63b0d728efb0fe,

title = "A magnetic equation of state",

abstract = "In general, the intensity of magnetization, M, is dependent on both magnetic field, H, and on time and may be described in terms of a constitutive equation, or equation of state as dH = (1/χ)dM + Λd In M, where 1/χ = π\{variant\}H/π\{variant\}M\{norm of matrix\}Ṁ and Λ = π\{variant\}H/π\{variant\} In Ṁ\{norm of matrix\}M. Measurements have been made on Pr15Fe77B8 from which values of Λ and χ as functions of M are derived using the constitutive equation. It is shown that χ is a function of M but is independent of Ṁ. At room temperature Λ = (86.0±1.4) Oe over the magnetization range + 300 to -500 G.",

author = "R. Street and McCormick, \{P. G.\} and L. Folks",

note = "Funding Information: We are grateful to Dr. S. Hirosawa of Sumitomo Special Metals Co. Ltd., Osaka, Japan for supplying sampleso f PrlsFeyTBs . The work was supportedb y the Australian Research Committee and the Research Centre for AdvancedM aterialsand Minerals Processing.",

year = "1992",

month = feb,

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doi = "10.1016/0304-8853(92)90837-E",

language = "English (US)",

volume = "104-107",

pages = "368--370",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "PART 1",

}

TY - JOUR

T1 - A magnetic equation of state

AU - Street, R.

AU - McCormick, P. G.

AU - Folks, L.

N1 - Funding Information: We are grateful to Dr. S. Hirosawa of Sumitomo Special Metals Co. Ltd., Osaka, Japan for supplying sampleso f PrlsFeyTBs . The work was supportedb y the Australian Research Committee and the Research Centre for AdvancedM aterialsand Minerals Processing.

PY - 1992/2/2

Y1 - 1992/2/2

N2 - In general, the intensity of magnetization, M, is dependent on both magnetic field, H, and on time and may be described in terms of a constitutive equation, or equation of state as dH = (1/χ)dM + Λd In M, where 1/χ = π{variant}H/π{variant}M{norm of matrix}Ṁ and Λ = π{variant}H/π{variant} In Ṁ{norm of matrix}M. Measurements have been made on Pr15Fe77B8 from which values of Λ and χ as functions of M are derived using the constitutive equation. It is shown that χ is a function of M but is independent of Ṁ. At room temperature Λ = (86.0±1.4) Oe over the magnetization range + 300 to -500 G.

AB - In general, the intensity of magnetization, M, is dependent on both magnetic field, H, and on time and may be described in terms of a constitutive equation, or equation of state as dH = (1/χ)dM + Λd In M, where 1/χ = π{variant}H/π{variant}M{norm of matrix}Ṁ and Λ = π{variant}H/π{variant} In Ṁ{norm of matrix}M. Measurements have been made on Pr15Fe77B8 from which values of Λ and χ as functions of M are derived using the constitutive equation. It is shown that χ is a function of M but is independent of Ṁ. At room temperature Λ = (86.0±1.4) Oe over the magnetization range + 300 to -500 G.

UR - https://www.scopus.com/pages/publications/0027108142

UR - https://www.scopus.com/pages/publications/0027108142#tab=citedBy

U2 - 10.1016/0304-8853(92)90837-E

DO - 10.1016/0304-8853(92)90837-E

M3 - Article

AN - SCOPUS:0027108142

SN - 0304-8853

VL - 104-107

SP - 368

EP - 370

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - PART 1

ER -

A magnetic equation of state

Abstract

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