Origin of coexisting large Seebeck coefficient and metallic conductivity in the electron doped SrTiO${}_3$ and KTaO${}_3$

Hidetomo Usui, Shinsuke Shibata, Kazuhiko Kuroki

We study the origin of the large Seebeck coefficient despite the metallic conductivity in the La-doped SrTiO${}_3$ and Ba-doped KTaO${}_3$. We calculate the band structure of SrTiO${}_3$…