ThuliumV1, Main, Exploration, bibRecord, 005327

Magnetic anisotropy of some heavy rare-earth metals

Identifieur interne : 005327 ( Main/Exploration ); précédent : 005326; suivant : 005328

Magnetic anisotropy of some heavy rare-earth metals

Auteurs : P. De. V. Du Plessis [Afrique du Sud]

Source :

Physica [ 0031-8914 ] ; 1969.

RBID : ISTEX:76D45EA4F540E64409B2E406C6E3B43A641CCA12

English descriptors

KwdEn :
- Anisotropy, Anisotropy coefficient, Anisotropy coefficients, Basal, Basal plane, Coefficient, Conduction electron magnetization, Conduction electrons, Constant magnetization, Different temperatures, Direct measurements, Dysprosium, Experimental data, External field, Ferromagnetic, Fourier analysis, Fourier coefficients, Hard directions, Heavy metals, Internal field, Magnetic anisotropy, Magnetic moment, Magnetization, Magnetization measurements, Magnetostriction, Magnetostriction coefficients, Magnetostriction curves, Maximum torque, Other authors, Paramagnetic region, Paramagnetic regions, Phys, Possible error, Saturation magnetization, Screw structure, Susceptibility, Terbium, Torque, Torque measurements, Twofold term.
Teeft :
- Anisotropy, Anisotropy coefficient, Anisotropy coefficients, Basal, Basal plane, Coefficient, Conduction electron magnetization, Conduction electrons, Constant magnetization, Different temperatures, Direct measurements, Dysprosium, Experimental data, External field, Ferromagnetic, Fourier analysis, Fourier coefficients, Hard directions, Heavy metals, Internal field, Magnetic anisotropy, Magnetic moment, Magnetization, Magnetization measurements, Magnetostriction, Magnetostriction coefficients, Magnetostriction curves, Maximum torque, Other authors, Paramagnetic region, Paramagnetic regions, Phys, Possible error, Saturation magnetization, Screw structure, Susceptibility, Terbium, Torque, Torque measurements, Twofold term.

Abstract

Abstract: The first order axial anisotropy coefficient, K2, has been evaluated for terbium at constant magnetic fields from torque measurements in its paramagnetic region. In this region K2 can also be calculated at constant magnetization from the known anisotropy in susceptibility between the basal plane and c axis. From the latter results, an extrapolation to 0 K has been made on the basis of the validity of the single-ion theory for the anisotropy of the heavy rare earths. This yields the following values in erg/cm3 for K2(0): Tb, 2.7 × 108; Dy, 3.1 × 108; Ho, 1.0 × 108; Er, −1.9 × 108. The basal-plane anistropy coefficient K66 of terbium has been determined at different temperatures and fields by direct torque measurements. It obeys the single-ion magnetization dependence with a value at 0 K of 2.9 × 106 erg/cm3.

Url:

https://api.istex.fr/document/76D45EA4F540E64409B2E406C6E3B43A641CCA12/fulltext/pdf

DOI: 10.1016/0031-8914(69)90126-8

Affiliations:

Afrique du Sud

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Le document en format XML

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<term>Coefficient</term>
<term>Conduction electron magnetization</term>
<term>Conduction electrons</term>
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<term>Different temperatures</term>
<term>Direct measurements</term>
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<term>Experimental data</term>
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<term>Ferromagnetic</term>
<term>Fourier analysis</term>
<term>Fourier coefficients</term>
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<term>Heavy metals</term>
<term>Internal field</term>
<term>Magnetic anisotropy</term>
<term>Magnetic moment</term>
<term>Magnetization</term>
<term>Magnetization measurements</term>
<term>Magnetostriction</term>
<term>Magnetostriction coefficients</term>
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<term>Possible error</term>
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<term>Susceptibility</term>
<term>Terbium</term>
<term>Torque</term>
<term>Torque measurements</term>
<term>Twofold term</term>
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<term>Fourier coefficients</term>
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<term>Heavy metals</term>
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<term>Magnetic anisotropy</term>
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<term>Magnetization measurements</term>
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<term>Magnetostriction coefficients</term>
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<term>Paramagnetic regions</term>
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<front><div type="abstract" xml:lang="en">Abstract: The first order axial anisotropy coefficient, K2, has been evaluated for terbium at constant magnetic fields from torque measurements in its paramagnetic region. In this region K2 can also be calculated at constant magnetization from the known anisotropy in susceptibility between the basal plane and c axis. From the latter results, an extrapolation to 0 K has been made on the basis of the validity of the single-ion theory for the anisotropy of the heavy rare earths. This yields the following values in erg/cm3 for K2(0): Tb, 2.7 × 108; Dy, 3.1 × 108; Ho, 1.0 × 108; Er, −1.9 × 108. The basal-plane anistropy coefficient K66 of terbium has been determined at different temperatures and fields by direct torque measurements. It obeys the single-ion magnetization dependence with a value at 0 K of 2.9 × 106 erg/cm3.</div>
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Magnetic anisotropy of some heavy rare-earth metals

Magnetic anisotropy of some heavy rare-earth metals

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

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