Kavli Affiliate: Joseph Falson
| First 5 Authors: Jeong Rae Kim, Sandra Glotzer, Evan Krysko, Matthew R. Barone, Jinkwon Kim
| Summary:
We report molecular beam epitaxy synthesis of vacancy-ordered rocksalt NbO
thin films which display superconductivity. A comparative study of substrates
identifies Al$_2$O$_3$ (0001) as the optimal platform for realizing
high-quality, single-phase films when growing at temperatures exceeding 1000
$^circ$C. The controlled NbO films exhibit superconductivity with critical
temperatures up to $T_mathrm{c}$ = 1.37 K, comparable to bulk single crystals.
This work addresses the fundamental bottlenecks encountered in the
high-temperature epitaxy of compounds with uncommon oxidation states, while
expanding the scope of available thin-film superconductors.
| Search Query: ArXiv Query: search_query=au:”Joseph Falson”&id_list=&start=0&max_results=3