| Full text | |
| Author(s): |
Menegasso, P.
[1]
;
Souza, J. C.
[1]
;
Vinograd, I
[2]
;
Wang, Z.
[2]
;
Edwards, S. P.
[2]
;
Pagliuso, P. G.
[1]
;
Curro, N. J.
[2]
;
Urbano, R. R.
[1]
Total Authors: 8
|
| Affiliation: | [1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[2] Univ Calif Davis, Dept Phys, Davis, CA 95616 - USA
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Physical Review B; v. 104, n. 3 JUL 27 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Overlap between neighboring atomic wave functions is a central feature of conducting solids. In heavy-fermion materials, f-electron orbitals in the lattice lie on the boundary between fully localized and hybridized in an energy band. This dichotomy gives rise to a range of behaviors, including antiferromagnetism, unconventional superconductivity, and the ability to tune from one ground state to the other continuously. Measuring the degree of this hybridization by traditional methods is challenging and indirect. We utilize an approach using NMR to determine the magnetic couplings between the f electrons and neighboring nuclear spins in a series of CeRh1-xIrxIn5 crystals and find that the hybridization is strongly direction dependent in this important class of superconducting heavy-fermion materials. Our results demonstrate that hyperfine coupling measurements provide a quantitative measure of orbital anisotropy. (AU) | |
| FAPESP's process: | 17/10581-1 - Emergent phenomena in reduced dimension systems |
| Grantee: | Pascoal Jose Giglio Pagliuso |
| Support Opportunities: | Special Projects |
| FAPESP's process: | 16/14436-3 - Studies of electronic and magnetic correlation in iron based superconductors and molecular conductors via Nuclear Magnetic Ressonance (NMR) and Quadrupolar (NQR) |
| Grantee: | Paulo Eduardo Menegasso Filho |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 18/11364-7 - Magnetic properties of complex systems with non-trivial topology |
| Grantee: | Jean Carlo Souza |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| 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: | 20/12283-0 - Scanning tunneling microscopy in topological nontrivial compounds |
| Grantee: | Jean Carlo Souza |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |