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Kondo effect in CexLa(1-x)Cu2Si2 intermetallics


Aviani, Ivica; Miljak, Marko; Zlatić, Veljko; Schotte, Klaus-Dieter; Geibel, Christoph; Steglich, Frank
Kondo effect in CexLa(1-x)Cu2Si2 intermetallics // Physical Review B, 64 (2001), 18. (međunarodna recenzija, članak, znanstveni)


Naslov
Kondo effect in CexLa(1-x)Cu2Si2 intermetallics

Autori
Aviani, Ivica ; Miljak, Marko ; Zlatić, Veljko ; Schotte, Klaus-Dieter ; Geibel, Christoph ; Steglich, Frank

Izvornik
Physical Review B (0163-1829) 64 (2001), 18;

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
CeCu2Si2; magnetic susceptibility; Kondo effect; crystalline electric field

Sažetak
The magnetic susceptibility and susceptibility anisotropy of the quasi-binary alloy system CexLa(1-x)Cu2.05Si2 have been studied for low concentration of Ce ions.The single-ion description is found to be valid for x<=0.09. The experimental results are discussed in terms of the degenerate Coqblin-Schrieffer model with a crystalline electric field splitting Delta = 330 K. The properties of the model, obtained by combining the lowest-order scaling and the perturbation theory, provide a satisfactory description of the experimental data down to 30 K. The experimental results between 20 K and 2 K are explained by the exact solution of the Kondo model for an effective doublet.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
00350105

Ustanove
Institut za fiziku, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI