Signatures of interactions in the Andreev spectrum of nanowire Josephson junctions
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 u...
| Autores: | , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/706277 |
| Acceso en línea: | http://hdl.handle.net/10486/706277 https://dx.doi.org/10.1103/PhysRevLett.128.197702 |
| Access Level: | acceso abierto |
| Palabra clave: | Finite Length Inas Nanowire Josephson Josephson-Junction Multi Channel Spectra's Spin-Orbit Interaction Splittings Superconducting Contacts Weakest Links Física |
| Sumario: | 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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