期刊
PHYSICAL REVIEW LETTERS
卷 128, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.128.197702
关键词
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资金
- ANR contract JETS
- FET-Open contract AndQC
- Danish National Research Foundation
- Renatech network
- Spanish AEI [PID2020117671 GB-I00]
- Maria de Maeztu Programme for Units of Excellence in RD [CEX2018000805-M]
- Region Ile-deFrance
- Spanish Ministry of Universities [FPU20/01871]
In this study, microwave spectroscopy of an InAs nanowire between superconducting contacts implementing a finite-length, multichannel Josephson weak link was performed. Additional transitions indicating Coulomb interactions were identified, providing a qualitative understanding of the rich Andreev spectra through a combination of experimental measurements and model calculations.
We performed microwave spectroscopy of an InAs nanowire between superconducting contacts implementing a finite-length, multichannel Josephson weak link. Certain features in the spectra, such as the splitting by spin-orbit interactions of the transition lines among Andreev states, have been already understood in terms of noninteracting models. However, we identify here additional transitions, which evidence the presence of Coulomb interactions. By combining experimental measurements and model calculations, we reach a qualitative understanding of these very rich Andreev spectra.
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