Naslov
Understanding the energy scales relevant for the valence transition in YbInCu4

Autori
Aviani, Ivica ; Očko, Miroslav ; Starešinić, Damir ; Biljaković, Katica ; Lojdl, Alojz ; Hemberger, J., Sarrao, John-Louis

Izvornik
Physical review. B, Rapid communication (1082-586X) 79 (2009), 16; 165112, 4

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

Ključne riječi
copper alloys ; crystal field interactions ; ground states ; indium alloys ; Kondo effect ; magnetic susceptibility ; specific heat ; ytterbium alloys ; yttrium alloys

Sažetak
We report measurements and data analysis of specific heat, susceptibility, and transport properties of Yb0.5Y0.5InCu4 in the temperature range between 2 and 300 K, and in magnetic fields of 0 and 5 T. The data can be consistently explained within the local-moment crystal-field theory with two close-lying doublets, Γ 6 and Γ 7, in the ground state and a Γ 8 excited quartet, and with very weak or even absent Kondo effect. The crystal-field scheme proposed by this work, which differs from the one widely accepted in the literature, provides a better understanding of the relevant energy scales and the valence transition in the YbInCu4.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA