INVESTIGADORES
ALIGIA Armando Angel
artículos
Título:
Anisotropic intermediate valence in Yb2M3Ga9
Autor/es:
A. D. CHRISTIANSON, J. M. LAWRENCE, A. M. LOBOS, A. A. ALIGIA, E. D. BAUER, N. O. MORENO, E. A. GOREMYCHKIN, K. C. LITTRELL, J. L. SARRAO, J. D. THOMPSON, AND C. D. BATISTA,
Revista:
PHYSICAL REVIEW B
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2005 vol. 72 p. 81 - 102
ISSN:
1098-0121
Resumen:
The intermediate valence compounds Yb2M 3Ga9 ͑M = Rh,Ir͒ exhibit an anisotropic magnetic susceptibility.We report measurements of the temperature dependence of the 4f occupation number, n f ͑T͒, for Yb2M 3Ga9 aswell as the magnetic inelastic neutron scattering spectrum Smag͑⌬E͒ at 12 and 300 K for Yb2Rh3Ga9. Bothn f ͑T͒ and Smag͑⌬E͒ were calculated for the Anderson impurity model with crystal field terms within anapproach based on the noncrossing approximation. These results corroborate the importance of crystal fieldeffects in these materials; they also suggest that Anderson lattice effects are important to the physics ofYb2M 3Ga9.
