| Full text | |
| Author(s): |
Bittar, E. M.
[1, 2]
;
Adriano, C.
[1]
;
Giles, C.
[1]
;
Rettori, C.
[1, 3]
;
Fisk, Z.
[4]
;
Pagliuso, P. G.
[1, 4]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[2] Lab Nacl Luz Sincrotron, BR-13083970 Campinas, SP - Brazil
[3] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP - Brazil
[4] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 - USA
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | Physical Review B; v. 86, n. 12 SEP 6 2012. |
| Web of Science Citations: | 5 |
| Abstract | |
The CeIn3-xSnx cubic heavy fermion system presents an antiferromagnetic transition at T-N = 10 K, for x = 0, that decreases continuously down to 0 K upon Sn substitution at a critical concentration of x(c) approximate to 0.65. In the vicinity of T-N -> 0 the system shows non-Fermi liquid behavior due to antiferromagnetic critical fluctuations. For a high Sn content, x greater than or similar to 2.2, intermediate valence effects are present. In this work we show that Gd3+-doped electron spin resonance (ESR) probes a change in the character of the Ce 4f electron, as a function of Sn substitution. The Gd3+ ESR results indicate a transition of the Ce 4f spin behavior from localized to itinerant. Near the quantum critical point, on the antiferromagnetic side of the magnetic phase diagram, both localized and itinerant behaviors coexist. (AU) | |
| FAPESP's process: | 11/01564-0 - Materials sciences on complex and advanced systems |
| Grantee: | Pascoal Jose Giglio Pagliuso |
| Support Opportunities: | Scholarships abroad - Research |
| FAPESP's process: | 06/60440-0 - Study of strongly correlated systems in extreme conditions |
| Grantee: | Carlos Rettori |
| Support Opportunities: | Research Projects - Thematic Grants |