Digital modulation of the nickel valence state in a cuprate-nickelate heterostructure

F. Wrobel, B. Geisler, Y. Wang +8

Layer-by-layer oxide molecular beam epitaxy has been used to synthesize cuprate-nickelate multilayer structures of composition (La${}_2$CuO${}_4$)${}_m$/LaO/(LaNiO${}_3$)${}_n$. In a combine…