| Autor: |
López-Núñez, David, Montserrat, Queralt Portell, Rius, Gemma, Bertoldo, Elia, Torras-Coloma, Alba, Martínez, M., Forn-Díaz, P. |
| Rok vydání: |
2023 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| Popis: |
We present a study of the superconducting penetration depth $\lambda$ in aluminum thin films of varying thickness. The range of thicknesses chosen spans from the thin-film regime to the regime approaching bulk behavior. The penetration depths observed range from $\lambda = 163.3\pm0.4~\rm{nm}$ for the thinnest $20~\rm{nm}$ samples down to $\lambda = 53.6\pm0.4~\rm{nm}$ for the $200~\rm{nm}$-thick ones. In order to accurately determine $\lambda$, we performed complementary measurements using the frequency of superconducting $LC$ resonators as well as the resistance of normal-state meanders. Both methods yield comparable results, providing a well-characterized set of values of $\lambda$ in aluminum in the relevant range for applications in fields such as quantum computing and microwave radiation detector technologies. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
