Control of thin NbN film superconducting properties by ScN buffer layer
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866908712772304896 |
|---|---|
| author | Porokhov, N. V. Dryazgov, M. A. Shevchenko, A. R. Mumlyakov, A. M. Enbaev, Z. S. Blinova, Yu. V. Devyaterikov, D. I. Korneeva, Yu. P. Korneev, A. A. Tarkhov, M. A. |
| author_facet | Porokhov, N. V. Dryazgov, M. A. Shevchenko, A. R. Mumlyakov, A. M. Enbaev, Z. S. Blinova, Yu. V. Devyaterikov, D. I. Korneeva, Yu. P. Korneev, A. A. Tarkhov, M. A. |
| contents | This work investigates the effect of a scandium nitride buffer layer on the superconducting properties of niobium nitride thin films. The use of a ScN buffer layer significantly improves the characteristics of 29 nm thick NbN films: the critical temperature Tc increases from 9 K to 12.5 K, while the resistivity at 20 K decreases from 330 mkOhm*cm to 210 mkOhm*cm compared to films without a buffer layer. These enhancements are attributed to the better lattice matching between NbN and ScN, which results in a higher quality crystal lattice of the NbN film, as confirmed by transmission electron microscopy and X-ray diffraction data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_13367 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Control of thin NbN film superconducting properties by ScN buffer layer Porokhov, N. V. Dryazgov, M. A. Shevchenko, A. R. Mumlyakov, A. M. Enbaev, Z. S. Blinova, Yu. V. Devyaterikov, D. I. Korneeva, Yu. P. Korneev, A. A. Tarkhov, M. A. Superconductivity This work investigates the effect of a scandium nitride buffer layer on the superconducting properties of niobium nitride thin films. The use of a ScN buffer layer significantly improves the characteristics of 29 nm thick NbN films: the critical temperature Tc increases from 9 K to 12.5 K, while the resistivity at 20 K decreases from 330 mkOhm*cm to 210 mkOhm*cm compared to films without a buffer layer. These enhancements are attributed to the better lattice matching between NbN and ScN, which results in a higher quality crystal lattice of the NbN film, as confirmed by transmission electron microscopy and X-ray diffraction data. |
| title | Control of thin NbN film superconducting properties by ScN buffer layer |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2512.13367 |