| Full text | |
| Author(s): |
Souza, J. C.
[1]
;
Lesseux, G. G.
[1, 2]
;
Urbano, R. R.
[1]
;
Rettori, C.
[1, 3]
;
Pagliuso, P. G.
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[2] Univ Stuttgart, Phys Inst 1, Stuttgart - Germany
[3] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | AIP ADVANCES; v. 8, n. 5 MAY 2018. |
| Web of Science Citations: | 0 |
| Abstract | |
The non-ambiguous experimental identification of topological states of matter is one of the main interesting problems regarding this new quantum state of matter. In particular, the half-Heusler family RMT (R = rare-earth, T = Pd, Pt or Au and T = Bi, Sb, Pb or Sn) could be a useful platform to explore these states due to their cubic symmetry and the topological properties tunable via their unit cell volume and/or the nuclear charges of the M and T atoms. In this work, we report electron spin resonance (ESR) and complementary macroscopic measurements in the Nd-3 (+) -doped putative topologically trivial semimetal YPdBi. Following the Nd-3 (+) ESR lineshape as a function of microwave power, size of the particle and temperature, we have been able to observe an evolution from a Dysonian lineshape to a diffusive-like lineshape. Furthermore, the Nd-3 (+) ESR intensity saturation is concentration dependent, which could be due to a phonon-bottleneck process. Comparing these results with the Nd-3 (+) -doped YPtBi, we discuss a possible scenario in which the Nd-3 (+) ions could locally tune the topological properties of the system. (c) 2018 Author(s). (AU) | |
| 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: | 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: | 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: | 12/05903-6 - 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: | 11/01564-0 - Materials sciences on complex and advanced systems |
| Grantee: | Pascoal Jose Giglio Pagliuso |
| Support Opportunities: | Scholarships abroad - Research |
| 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: | 06/60440-0 - Study of strongly correlated systems in extreme conditions |
| Grantee: | Carlos Rettori |
| Support Opportunities: | Research Projects - Thematic Grants |