Superconductivity in the dilute single band limit in reduced Strontium Titanate

Terence M. Bretz-Sullivan, Alexander Edelman, J. S. Jiang +9

We report on superconductivity in single crystals of SrTiO${}_{3-\delta }$ with carrier densities $\text{n}<1.4\times 10^{18}c{m}^{-3}$, where only a single band is occupied. For all sam…