Comment on "Superconductivity in electron-doped layered TiNCl with variable interlayer coupling"

Dale R. Harshman, Anthony T. Fiory

In their article, Zhang et al. [Phys. Rev. B 86, 024516 (2012)] present a remarkable result for A${}_x$(S)${}_y$TiNCl compounds ($\alpha$-phase TiNCl partially intercalated with alkali A an…