Artículos de revistas
Low Temperature Transport And Thermodynamic Properties Of The Zintl Compound Yb11alsb9: A New Kondo Lattice Semiconductor
Registro en:
1873-4669
Journal Of Alloys And Compounds. ELSEVIER SCIENCE SA, n. 669, p. 60 - 65.
0925-8388
WOS:000371764500008
10.1016/j.jallcom.2016.01.206
Autor
Magnavita
ET; Rettori
C; Osorio-Guillen
JM; Ferreira
FF; Mendonca-Ferreira
L; Avila
MA; Ribeiro
RA
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) A thorough transport and thermodynamic investigation of flux-grown single crystals of the ternary Zintl phase Yb-11 AlSb9, combined with first-principles density functional theory calculations, shows that this compound is a metal above T approximate to 100 K and a semiconductor with small hybridization gap at low-T. The general behavior resembles those of Kondo lattice semiconductors, although some of the measured properties are strongly sample dependent, as often seen in hybridized f-electron materials. We thus suggest that Yb-11 AlSb9 can be considered as a new Yb-based Kondo lattice semiconductor joining the family of strongly correlated electron systems. (C) 2016 Elsevier B.V. All rights reserved. 669
60 65 FAPESP [2008/10537-3, 2011/09813-9, 2011/23795-3, 2011/19924-2, 2012/17562-9] CNPq CAPES Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)