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Memorias de investigación
Communications at congresses:
Kondo temperature and Heavy fermion behavior in Yb1-xYxCuAl series of alloys
Year:2017
Research Areas
  • Magnetism
Information
Abstract
A study of the properties of Yb1-xYxCuAl series of alloys is reported. The electronic coefficient ranges from 340 mJ/molK2 (x =0) to 250 mJ/molYbK2 (x =0.8). The electrical resistivity shows an evolution from Kondo lattice for x = 0 to the single impurity regime for x ? 0.8. For x ? 0.6 the low temperature resistivity data shows the AT2 dependence, characteristic of Fermi liquid behavior with the A coefficient reducing from 0.053 (x= 0) to 0.0139 (x = 0.6), and scaling with the electronic coefficient as 10?6. At low temperatures (T < 15 K), the magnetic susceptibility decreases from 0.0308 emu/molYbOe (x=0) to 0.0274 emu/molYbOe (x = 0.8), according to Wilson ratio. The results are consistent with an increase of TK, in agreement with the Doniach diagram.
International
Si
Congress
Strongly Correlated Electron Systems 2017 ( SCES 2017)
960
Place
Praga, República Checa
Reviewers
Si
ISBN/ISSN
0921-4526
10.1016/j.physb.2017.09.096
Start Date
17/07/2017
End Date
21/07/2017
From page
176
To page
181
Kondo temperature and Heavy fermion behavior in Yb1-xYxCuAl series of alloys
Participants
  • Autor: Daniel Rojas Pupo (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Estructuras y Física de Edificación
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