| Full text | |
| Author(s): |
Jesus, C. B. R.
[1]
;
Rosa, P. F. S.
[1]
;
Garitezi, T. M.
[1]
;
Lesseux, G. G.
[1]
;
Urbano, R. R.
[1]
;
Rettori, C.
[1, 2]
;
Pagliuso, P. G.
[1]
Total Authors: 7
|
| Affiliation: | [1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[2] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Solid State Communications; v. 177, p. 95-97, JAN 2014. |
| Web of Science Citations: | 3 |
| Abstract | |
We present electron spin resonance (ESR) measurements at X-Band frequency (nu=9.5 GHz) in powdered single crystal of the half-Heusler antiferromagnet GdPdBi grown using a Bi-flux method. In the paramagnetic state, a single Gd3+ Dysonian ESR line is observed with a nearly temperature independent g-factor of 1.99(2). On the other hand, the ESR linewidth Delta H increases non-linearly with decreasing temperature, indicating that the dominant relaxation mechanism occurs via Gd3+ spin-spin interaction. Approaching the AFM transition at T-N approximate to 13 K, the Gd3+ ESR line shifts to higher fields due to the emergence of short-range AFM correlations. Complementary data from macroscopic measurements such as magnetic susceptibility, heat capacity and electrical resistivity measurements provide further details about the global macroscopic physical properties of the GdPdBi compound. (C) 2013 Elsevier Ltd. All rights reserved. (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: | 12/04870-7 - Studies of novel complex and advanced materials |
| Grantee: | Pascoal Jose Giglio Pagliuso |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 12/05903-6 - Nuclear magnetic resonance of novel complex and advanced materials in condensed matter physics |
| Grantee: | Ricardo Rodrigues Urbano |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| 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 |