Serveur d'exploration sur le cobalt au Maghreb

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Effect of substitution of iron by cobalt on the physical properties in the Sm2Fe14Mn3 compound

Identifieur interne : 000253 ( PascalFrancis/Checkpoint ); précédent : 000252; suivant : 000254

Effect of substitution of iron by cobalt on the physical properties in the Sm2Fe14Mn3 compound

Auteurs : M. Ellouze [Tunisie] ; M. S. Ben Kraiem [Tunisie] ; A. Cheikh-Rouhou [Tunisie] ; Ph. L'Heritier [France]

Source :

RBID : Pascal:02-0189692

Descripteurs français

English descriptors

Abstract

The crystallographic and magnetic properties of Sm2Fe14-xCoxMn3 with x = 0, 1, 2, and 3 have been investigated using X-ray diffraction and magnetic measurements. The Sm2Fe14-xCoxMn3 samples crystallised in the rhombohedral Th2Zn17 structure. The unit cell volume decreases with increasing Co concentration. The Curie temperature as well as the saturation magnetisation increases with increasing cobalt contents. The Curie temperature of Sm2Fe11Co3Mn3 is about 470 K and the saturation magnetisation is about 160 emu/g. All the samples exhibit an easy direction of magnetization along the c-axis.


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Pascal:02-0189692

Le document en format XML

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<term>Lattice parameters</term>
<term>Magnetic properties</term>
<term>Magnetization direction</term>
<term>Manganese alloys</term>
<term>Quaternary alloys</term>
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<div type="abstract" xml:lang="en">The crystallographic and magnetic properties of Sm
<sub>2</sub>
Fe
<sub>14-x</sub>
Co
<sub>x</sub>
Mn
<sub>3</sub>
with x = 0, 1, 2, and 3 have been investigated using X-ray diffraction and magnetic measurements. The Sm
<sub>2</sub>
Fe
<sub>14-x</sub>
Co
<sub>x</sub>
Mn
<sub>3</sub>
samples crystallised in the rhombohedral Th
<sub>2</sub>
Zn
<sub>17</sub>
structure. The unit cell volume decreases with increasing Co concentration. The Curie temperature as well as the saturation magnetisation increases with increasing cobalt contents. The Curie temperature of Sm
<sub>2</sub>
Fe
<sub>11</sub>
Co
<sub>3</sub>
Mn
<sub>3</sub>
is about 470 K and the saturation magnetisation is about 160 emu/g. All the samples exhibit an easy direction of magnetization along the c-axis.</div>
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Fe
<sub>14-x</sub>
Co
<sub>x</sub>
Mn
<sub>3</sub>
with x = 0, 1, 2, and 3 have been investigated using X-ray diffraction and magnetic measurements. The Sm
<sub>2</sub>
Fe
<sub>14-x</sub>
Co
<sub>x</sub>
Mn
<sub>3</sub>
samples crystallised in the rhombohedral Th
<sub>2</sub>
Zn
<sub>17</sub>
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<sub>2</sub>
Fe
<sub>11</sub>
Co
<sub>3</sub>
Mn
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