Kondo temperature and Heavy Fermion behavior in Yb1−xYxCuAl series of alloys

Kondo temperature and Heavy Fermion behavior in Yb1−xYxCuAl series of alloys

Results on x-ray diffraction, electrical resistivity, specific heat and magnetization on the Yb1−xYxCuAl series of compounds are reported. The analysis of the x-ray data shows the increase of the unit cell volume with the Y dilution. The electrical resistivity shows an evolution from Kondo lattice r...

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Veröffentlicht in:Physica. B, Condensed matter Condensed matter, 2018-05, Vol.536, p.176-181
Hauptverfasser: Rojas, D.P., Gandra, F.G., Medina, A.N., Fernández Barquín, L., Gómez Sal, J.C.
Format: Artikel
Sprache:eng
Schlagworte:
Alloys
Dependence
Dilution
Electric resistance
Electrical resistivity
Electron transfer
Evolution
Heavy fermion
Heavy fermion systems
Intermediate valence
Kondo temperature
Magnetic permeability
Organic chemistry
Particle physics
Pressure effects
Scattering
Specific heat
Substitutes
Temperature
Unit cell
X-ray diffraction
Yb alloys
Yttrium
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Beschreibung
Zusammenfassung:Results on x-ray diffraction, electrical resistivity, specific heat and magnetization on the Yb1−xYxCuAl series of compounds are reported. The analysis of the x-ray data shows the increase of the unit cell volume with the Y dilution. The electrical resistivity shows an evolution from Kondo lattice regime for x≤0.6 to single impurity behavior for x = 0.8 and 0.94. The electronic coefficient γ shows values of Heavy Fermion systems along the series for 0 ≤x
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2017.09.096