ThuliumV1, Main, Exploration, bibRecord, 001647

Formation and magnetic properties of p-type icosahedral quasicrystals in Zn-Fe-Sc-L (L = Ilo, Er, Tm) alloys

Identifieur interne : 001647 ( Main/Exploration ); précédent : 001646; suivant : 001648

Formation and magnetic properties of p-type icosahedral quasicrystals in Zn-Fe-Sc-L (L = Ilo, Er, Tm) alloys

Auteurs : S. Kashimoto [Japon] ; C. Masuda [Japon] ; S. Motomura [Japon] ; S. Matsuo [Japon] ; T. Ishimasa [Japon]

Source :

Philosophical magazine : (2003. Print) [ 1478-6435 ] ; 2007.

RBID : Pascal:07-0391935

Descripteurs français

Pascal (Inist)
- Propriété magnétique, Limite solubilité, Quasicristal, Dépendance température, Susceptibilité magnétique, Loi Curie Weiss, Verre spin, Solidification, Point Curie, Facteur g, Ion libre, Règle Hund, Aimantation, Phase icosaédrique, Fer, Erbium, Thulium alliage, Holmium, Moment magnétique, 7550K, 6144B.
Wicri :
- topic : Fer.

English descriptors

KwdEn :
- Curie point, Curie-Weiss law, Erbium, Free ion, Holmium, Hund rule, Icosahedral phase, Iron, Magnetic moments, Magnetic properties, Magnetic susceptibility, Magnetization, Quasicrystals, Solidification, Solubility limit, Spin glasses, Temperature dependence, Thulium alloys, g-factor.

Abstract

Icosahedral quasicrystals containing heavy lanthanoids L, namely Ho, Er or Tm, have been discovered in the Zn₇₇Fe₇Sc_16-xL_x alloy systems. The solubility limit of the lanthanoid is approximately half of the Sc atoms. All these quasicrystals belong to p-type and are stable at approximately 973 K. The temperature dependence of the magnetic susceptibility of the Zn₇₇Fe₇Sc₈Tm₈ quasicrystal follows the Curie-Weiss law and exhibits spin-glass-like behaviour with a freezing temperature of 9K. The Curie constants obtained by Curie-Weiss fit are larger than those calculated by the Lande g-factor of free Tm³⁺ ions based on Hund's rule, assuming all magnetization is caused by Tm atoms only. It is deduced that both Tm and Fe atoms exhibit magnetic moments. This is the first example of a stable icosahedral quasicrystal containing two types of magnetic atoms: Fe and the lanthanoids.

Affiliations:

Japon

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Le document en format XML

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<term>Hund rule</term>
<term>Icosahedral phase</term>
<term>Iron</term>
<term>Magnetic moments</term>
<term>Magnetic properties</term>
<term>Magnetic susceptibility</term>
<term>Magnetization</term>
<term>Quasicrystals</term>
<term>Solidification</term>
<term>Solubility limit</term>
<term>Spin glasses</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Propriété magnétique</term>
<term>Limite solubilité</term>
<term>Quasicristal</term>
<term>Dépendance température</term>
<term>Susceptibilité magnétique</term>
<term>Loi Curie Weiss</term>
<term>Verre spin</term>
<term>Solidification</term>
<term>Point Curie</term>
<term>Facteur g</term>
<term>Ion libre</term>
<term>Règle Hund</term>
<term>Aimantation</term>
<term>Phase icosaédrique</term>
<term>Fer</term>
<term>Erbium</term>
<term>Thulium alliage</term>
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<front><div type="abstract" xml:lang="en">Icosahedral quasicrystals containing heavy lanthanoids L, namely Ho, Er or Tm, have been discovered in the Zn<sub>77</sub>
Fe<sub>7</sub>
Sc<sub>16-x</sub>
L<sub>x</sub>
 alloy systems. The solubility limit of the lanthanoid is approximately half of the Sc atoms. All these quasicrystals belong to p-type and are stable at approximately 973 K. The temperature dependence of the magnetic susceptibility of the Zn<sub>77</sub>
Fe<sub>7</sub>
Sc<sub>8</sub>
Tm<sub>8</sub>
 quasicrystal follows the Curie-Weiss law and exhibits spin-glass-like behaviour with a freezing temperature of 9K. The Curie constants obtained by Curie-Weiss fit are larger than those calculated by the Lande g-factor of free Tm<sup>3+</sup>
 ions based on Hund's rule, assuming all magnetization is caused by Tm atoms only. It is deduced that both Tm and Fe atoms exhibit magnetic moments. This is the first example of a stable icosahedral quasicrystal containing two types of magnetic atoms: Fe and the lanthanoids.</div>
</front>
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Formation and magnetic properties of p-type icosahedral quasicrystals in Zn-Fe-Sc-L (L = Ilo, Er, Tm) alloys

Formation and magnetic properties of p-type icosahedral quasicrystals in Zn-Fe-Sc-L (L = Ilo, Er, Tm) alloys

Source :

Descripteurs français

English descriptors

Abstract

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

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri