ThuliumV1, Main, Exploration, bibRecord, 002243

Magnetic study of HfFe6Ge6-type solid solutions TbMn6Ge6− x Ga x (0.05≤ x ≤0.60) and TmMn6Ge6− x Ga x (0.2≤ x ≤1.0)

Identifieur interne : 002243 ( Main/Exploration ); précédent : 002242; suivant : 002244

Magnetic study of HfFe6Ge6-type solid solutions TbMn6Ge6− x Ga x (0.05≤ x ≤0.60) and TmMn6Ge6− x Ga x (0.2≤ x ≤1.0)

Auteurs : Gérard Venturini (physicien) [France]

Source :

Journal of Alloys and Compounds [ 0925-8388 ] ; 2000.

RBID : ISTEX:7A36C677274994FF23913E89D12DB74E24CB6071

Descripteurs français

Pascal (Inist)
- 7525, 7560E, Aimantation, Alliage GaGeMnTb, Alliage GaGeMnTm, Alliage quaternaire, Antiferromagnétisme, Dépendance température, Effet composition, Etude expérimentale, Ferrimagnétisme, Ga Ge Mn Tb, Ga Ge Mn Tm, Gallium alliage, Germanium alliage, Hystérésis magnétique, Interaction échange, Manganèse alliage, Ordre magnétique, Réorientation spin, Solution solide, Terbium alliage, Thulium alliage.
Wicri :
- topic : Alliage.

English descriptors

Abstract

Abstract: The TbMn6Ge6−xGax (0.05≤x≤0.60) and TmMn6Ge6−xGax (0.2≤x≤1.0) compounds have been studied by magnetization measurements in the temperature range 10–600 K. The TbMn6Ge6−xGax compounds order ferrimagnetically above room temperature (452≥Tc≥438 K). The low Ga content compounds (x≤0.2) display a ferri- to antiferromagnetic transition on cooling (363≥Tt≥181 K) and a second Curie point at lower temperature (49≤Tc′≤108 K). The high Ga content compounds display ferrimagnetic ordering in their whole ordered range and a spin reorientation transition at low temperature (112≤TSF≤162 K). The TmMn6Ge6−xGax compounds (x≤0.8) order antiferromagnetically above the room temperature (476≥TN≥372 K) and except TmMn6Ge5.8Ga0.2, display a ferrimagnetic ordering at lower temperature (32≤Tc≤250 K). TmMn6Ge5Ga1 is ferrimagnetic in its whole ordered range. The Ga-rich compounds (x≥0.6) display a spin reorientation process around 50 K. All the ferrimagnetic compounds display large anisotropy effects at low temperature. The coercive fields measured for TbMn6Ge5.4Ga0.6 and TmMn6Ge5Ga1 are greater than 25 and 20 kOe, respectively. The evolutions of the magnetic properties and magnetocrystalline anisotropy are discussed.

Url:

https://api.istex.fr/document/7A36C677274994FF23913E89D12DB74E24CB6071/fulltext/pdf

DOI: 10.1016/S0925-8388(00)01197-X

Affiliations:

Le document en format XML

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<front><div type="abstract" xml:lang="en">Abstract: The TbMn6Ge6−xGax (0.05≤x≤0.60) and TmMn6Ge6−xGax (0.2≤x≤1.0) compounds have been studied by magnetization measurements in the temperature range 10–600 K. The TbMn6Ge6−xGax compounds order ferrimagnetically above room temperature (452≥Tc≥438 K). The low Ga content compounds (x≤0.2) display a ferri- to antiferromagnetic transition on cooling (363≥Tt≥181 K) and a second Curie point at lower temperature (49≤Tc′≤108 K). The high Ga content compounds display ferrimagnetic ordering in their whole ordered range and a spin reorientation transition at low temperature (112≤TSF≤162 K). The TmMn6Ge6−xGax compounds (x≤0.8) order antiferromagnetically above the room temperature (476≥TN≥372 K) and except TmMn6Ge5.8Ga0.2, display a ferrimagnetic ordering at lower temperature (32≤Tc≤250 K). TmMn6Ge5Ga1 is ferrimagnetic in its whole ordered range. The Ga-rich compounds (x≥0.6) display a spin reorientation process around 50 K. All the ferrimagnetic compounds display large anisotropy effects at low temperature. The coercive fields measured for TbMn6Ge5.4Ga0.6 and TmMn6Ge5Ga1 are greater than 25 and 20 kOe, respectively. The evolutions of the magnetic properties and magnetocrystalline anisotropy are discussed.</div>
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Magnetic study of HfFe6Ge6-type solid solutions TbMn6Ge6− x Ga x (0.05≤ x ≤0.60) and TmMn6Ge6− x Ga x (0.2≤ x ≤1.0)

Magnetic study of HfFe6Ge6-type solid solutions TbMn6Ge6− x Ga x (0.05≤ x ≤0.60) and TmMn6Ge6− x Ga x (0.2≤ x ≤1.0)

Source :

Descripteurs français

English descriptors

Abstract

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