| Full text | |
| Author(s): |
Rosa, P. F. S.
[1, 2]
;
Adriano, C.
[1, 2]
;
Garitezi, T. M.
[1]
;
Ribeiro, R. A.
[3]
;
Fisk, Z.
[2]
;
Pagliuso, P. G.
[1, 2]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[2] Univ Calif Irvine, Irvine, CA 92697 - USA
[3] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Physical Review B; v. 86, n. 9 SEP 7 2012. |
| Web of Science Citations: | 7 |
| Abstract | |
We present electron spin resonance (ESR) measurements in single-crystalline samples of EuIn2As2 grown using the In-flux method. This compound crystallizes in a hexagonal P6(3)/mmc structure and presents antiferromagnetic (AFM) ordering below T-N = 16 K. In the paramagnetic state, a single Eu2+ Dysonian ESR line with nearly temperature-independent g-factor and linewidth is observed, indicating the absence of Korringa-like relaxation of the Eu2+ ions. Approaching the AFM transition, we observe an anisotropic g-shift and a linewidth broadening which has a maximum at T-N, suggesting that the short- range AFM correlation dominates the spin dynamics of the Eu2+ spins in this temperature range. Our results are discussed based on complementary data (magnetic susceptibility, heat capacity, and electrical resistivity measurements) that provide further details about the global macroscopic physical properties of the EuIn2As2 intermetallic compound. (AU) | |
| FAPESP's process: | 09/09247-3 - Investigation of pressure induced ordered states in novel complex materials. |
| Grantee: | Cris Adriano |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 10/11949-3 - Electron spin resonance (ESR) in superconducting Fe-based pnictides |
| Grantee: | Priscila Ferrari Silveira Rosa |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| 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: | 11/23650-5 - Investigation of band structure and Fermi surface in advanced complex materials studied by angle-resolved photoemission spectroscopy |
| Grantee: | Cris Adriano |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 06/60440-0 - Study of strongly correlated systems in extreme conditions |
| Grantee: | Carlos Rettori |
| Support Opportunities: | Research Projects - Thematic Grants |