IndiumV3, Russie, Analysis, bibRecord, 001196

Transformation of the magnetic state in Yb0.5In0.5Cu2 in a first-order phase transition

Identifieur interne : 001196 ( Russie/Analysis ); précédent : 001195; suivant : 001197

Transformation of the magnetic state in Yb0.5In0.5Cu2 in a first-order phase transition

Auteurs : RBID : Pascal:97-0095445

Descripteurs français

Pascal (Inist)
- 7530M, Etude expérimentale.

English descriptors

KwdEn :
- Experimental study.

Abstract

The intermetallic compound Yb_0.5In_0.5Cu₂ doped with Gd³⁺ atoms is investigated using ESR and measurements of the static magnetic susceptibility. The evolution of the magnetic state both below and above the first-order phase transition, which is observed at 50 K in this compound, is studied. It is established that at low temperatures Yb_0.5In_0.5Cu₂ is a dense Kondo lattice, which passes to a regime with well defined localized magnetic moments for the Yb³⁺ ions as the temperature rises. The phase transition is associated with a Kondo volume collapse mechanism. The values of the RKKY exchange integral J_Gd-Yb and the spin fluctuation rate τ^-1 of the ytterbium ions are determined. © 1996 American Institute of Physics.

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Le document en format XML

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In<sub>0.5</sub>
Cu<sub>2</sub>
 in a first-order phase transition</title>
<author><name sortKey="Al Tshuler, T S" uniqKey="Al Tshuler T">T. S. Al Tshuler</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Kazan′ Physicotechnical Institute, Russian Academy of Sciences, 420029 Kazan′, Russia</s1>
<sZ>1 aut.</sZ>
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<author><name sortKey="Bresler, M S" uniqKey="Bresler M">M. S. Bresler</name>
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<author><name sortKey="Elschner, B" uniqKey="Elschner B">B. Elschner</name>
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<author><name sortKey="Schlott, M" uniqKey="Schlott M">M. Schlott</name>
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<wicri:noRegion>Frankfurt am Main</wicri:noRegion>
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<author><name sortKey="Gratz, E" uniqKey="Gratz E">E. Gratz</name>
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<front><div type="abstract" xml:lang="en">The intermetallic compound Yb<sub>0.5</sub>
In<sub>0.5</sub>
Cu<sub>2</sub>
 doped with Gd<sup>3+</sup>
 atoms is investigated using ESR and measurements of the static magnetic susceptibility. The evolution of the magnetic state both below and above the first-order phase transition, which is observed at 50 K in this compound, is studied. It is established that at low temperatures Yb<sub>0.5</sub>
In<sub>0.5</sub>
Cu<sub>2</sub>
 is a dense Kondo lattice, which passes to a regime with well defined localized magnetic moments for the Yb<sup>3+</sup>
 ions as the temperature rises. The phase transition is associated with a Kondo volume collapse mechanism. The values of the RKKY exchange integral J<sub>Gd-Yb</sub>
 and the spin fluctuation rate τ<sup>-1</sup>
 of the ytterbium ions are determined. © 1996 American Institute of Physics.</div>
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Cu<sub>2</sub>
 doped with Gd<sup>3+</sup>
 atoms is investigated using ESR and measurements of the static magnetic susceptibility. The evolution of the magnetic state both below and above the first-order phase transition, which is observed at 50 K in this compound, is studied. It is established that at low temperatures Yb<sub>0.5</sub>
In<sub>0.5</sub>
Cu<sub>2</sub>
 is a dense Kondo lattice, which passes to a regime with well defined localized magnetic moments for the Yb<sup>3+</sup>
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Transformation of the magnetic state in Yb0.5In0.5Cu2 in a first-order phase transition

Transformation of the magnetic state in Yb0.5In0.5Cu2 in a first-order phase transition

Descripteurs français

English descriptors

Abstract

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Links to Exploration step

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Pour manipuler ce document sous Unix (Dilib)

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