تقرير
The role of Coulomb interaction in superconducting NbTiN thin films
| العنوان: | The role of Coulomb interaction in superconducting NbTiN thin films |
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| المؤلفون: | Hazra, D., Tsavdaris, N., Mukhtarova, A., Jacquemin, M., Blanchet, F., Albert, R., Jebari, S., Grimm, A., Blanquet, E., Mercier, F., Chapelier, C., Hofheinz, M. |
| المصدر: | Phys. Rev. B 97, 144518 (2018) |
| سنة النشر: | 2017 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | We report on the superconducting properties of Nb$_{1-x}$Ti$_x$N thin films of thickness $\sim$ 10 nm, with different Ti fraction $x$ in the range $ 0 \leq x \leq 0.5$, deposited by high temperature chemical vapor deposition. In this parameter range, we observe that the superconducting critical temperature ($T_c$) increases with $x$. Our analysis, in accordance with both McMillan's and Finkelstein's theories, shows that disorder-enhanced Coulomb interaction decreases with $x$, leading to an increase of $T_c$. Comment: 6 pages, 5 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.97.144518 |
| URL الوصول: | http://arxiv.org/abs/1711.04585 |
| رقم الأكسشن: | edsarx.1711.04585 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.97.144518 |
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