Kuzmicheva, T. E.; Kuzmichev, S. A.; Zhigadlo, N. D. (2019). Superconducting order parameter and bosonic mode in hydrogen-substituted NdFeAsO0.6H0.36 revealed by multiple-Andreev-reflection spectroscopy. Physical review. B - condensed matter and materials physics, 100(14), pp. 1-10. American Physical Society 10.1103/PhysRevB.100.144504
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Using intrinsic multiple-Andreev-reflection-effect spectroscopy, we studied ballistic superconductor-normal metal-superconductor (SnS) contacts in layered oxypnictide superconductors NdFeAsO0.6H0.36 with critical temperatures Tc=45−48 K. We directly determined the magnitude of two bulk superconducting order parameters, the large gap ΔL≈10.4 meV, a possible small gap ΔS≈1.8 meV, and their temperature dependence. Additionally, a resonant coupling with a characteristic bosonic mode was observed—the boson energy at 4.2 K, ɛ0=10.5−11.0 meV being less than the indirect gap (ΔL<ɛ0<ΔL+ΔS).
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Zhigadlo, Nikolai |
Subjects: |
500 Science > 570 Life sciences; biology 500 Science > 540 Chemistry |
ISSN: |
1098-0121 |
Publisher: |
American Physical Society |
Language: |
English |
Submitter: |
Franziska Bornhauser-Rufer |
Date Deposited: |
27 Feb 2020 10:26 |
Last Modified: |
05 Dec 2022 15:36 |
Publisher DOI: |
10.1103/PhysRevB.100.144504 |
BORIS DOI: |
10.7892/boris.140678 |
URI: |
https://boris.unibe.ch/id/eprint/140678 |
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