| Texto completo | |
| Autor(es): |
Rosa, P. F. S.
;
Oostra, A.
;
Thompson, J. D.
;
Pagliuso, P. G.
;
Fisk, Z.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW B; v. 94, n. 4, p. 6-pg., 2016-07-05. |
| Resumo | |
We investigate single crystals of Ce1-xNdxRhIn5 by means of x-ray-diffraction, microprobe, magnetic susceptibility, heat capacity, and electrical resistivity measurements. Our data reveal that the antiferromagnetic transition of CeRhIn5, at T-N(Ce) = 3.8 K, is linearly suppressed with x(Nd). We associate this effect with the presence of a "Kondo hole" created by Nd substitution. The extrapolation of T-N(Ce) to zero temperature, however, occurs at x(c) similar to 0.3, which is below the two-dimensional percolation limit found in Ce1-xLaxRhIn5. This result strongly suggests the presence of a crystal-field induced magnetic frustration. Near x(Nd) similar to 0.2, the Ising antiferromagnetic order from Nd3+ ions is stabilized and T-N(Nd) increases up to 11 K in NdRhIn5. Our results shed light on the effects of magnetic doping in heavy-fermion antiferromagnets and stimulate the study of such systems under applied pressure. (AU) | |
| Processo FAPESP: | 12/04870-7 - Estudos de novos materiais complexos e avançados |
| Beneficiário: | Pascoal Jose Giglio Pagliuso |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 13/20181-0 - Evolução do comportamento isolante Kondo topológico em Sm1xRxB6 (r = Sr, Yb) |
| Beneficiário: | Priscila Ferrari Silveira Rosa |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado |