Electron spin resonance in the Heusler alloy YbRh2Pb
|Title||Electron spin resonance in the Heusler alloy YbRh2Pb|
|Publication Type||Journal Article|
|Year of Publication||2009|
|Authors||Ivanshin VA, Litvinova TO, Sukhanov AA, Sokolov DA, Aronson MC|
|Journal Title||Jetp Letters|
An electron spin resonance (ESR) signal was observed in a concentrated Kondo lattice, Heusler alloy YbRh2Pb. It is attributed to the combined effect of the 4f local magnetic moments of Yb3+ and conduction electrons. It is shown that the significant broadening and disappearance of the ESR line at temperatures above 20 K is caused by the processes of the spin-lattice relaxation of the Yb3+ ions through the first excited Stark doublet with an activation energy Delta a parts per thousand 73.5 K. A comparison of the ESR data for YbRh2Pb and some other undoped intermetallic compounds based on ytterbium, cerium, and europium indicates that hybridized electronic states occurring as the result of hybridization between the localized 4f electrons and the collectivized conduction electrons constitute a fundamentally new source of ESR.
|URL||<Go to ISI>://000269917700007|