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Structural and electronic properties of the highly concentrated U<sub>x</sub>Y<sub>1-x</sub>Ru<sub>2</sub>Si<sub>2</sub> alloy system (CROSBI ID 177038)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Očko, Miroslav ; Samardžija, Zoran ; Žonja, Sanja ; Aviani, Ivica Structural and electronic properties of the highly concentrated U<sub>x</sub>Y<sub>1-x</sub>Ru<sub>2</sub>Si<sub>2</sub> alloy system // Journal of alloys and compounds, 512 (2012), 1; 79-84. doi: 10.1016/j.jallcom.2011.09.022

Podaci o odgovornosti

Očko, Miroslav ; Samardžija, Zoran ; Žonja, Sanja ; Aviani, Ivica

engleski

Structural and electronic properties of the highly concentrated U<sub>x</sub>Y<sub>1-x</sub>Ru<sub>2</sub>Si<sub>2</sub> alloy system

We report on the resistivity and thermopower measurements together with the microstructural investigations of two highly concentrated alloys of the U<sub>x</sub>Y<sub>1-x</sub>Ru<sub>2</sub>Si<sub>2</sub> alloy system, for x = 0.5 and x = 0.67, nominally. Microstructural analysis shows the existence of two different crystalline phases at the room temperature: the solid solution U<sub>c</sub>Y<sub>1-c</sub>Ru<sub>2</sub>Si<sub>2</sub> (c < x) phase and the phase which can be represented by chemical formula URu<sub>2</sub>Si. We show that the uranium single ions dissolved in the YRu<sub>2</sub>Si<sub>2</sub> matrix exhibit the ordinary or single-channel Kondo effect described by the Coqblin–Schrieffer Hamiltonian. In the light of the obtained results, the URu<sub>2</sub>Si<sub>2</sub> compound is discussed.

metals and alloys; Kondo effect

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Podaci o izdanju

512 (1)

2012.

79-84

objavljeno

0925-8388

10.1016/j.jallcom.2011.09.022

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Fizika

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