Electronic reconstruction at SrMnO3-LaMnO3 superlattice interfaces

Şerban Smadici, Peter Abbamonte, Anand Bhattacharya, Xiaofang Zhai, Bin Jiang, Andrivo Rusydi, James N. Eckstein, Samuel D. Bader, Jian Min Zuo

Research output: Contribution to journalArticlepeer-review


We use resonant soft-x-ray scattering (RSXS) to study the electronic reconstruction at the interface between the Mott insulator LaMnO3 and the band insulator SrMnO3. Superlattices of these two insulators were shown previously to have both ferromagnetism and metallic tendencies. By studying a judiciously chosen superlattice reflection, we show that the interface density of states exhibits a pronounced peak at the Fermi level, similar to that predicted in related titanate superlattices by Okamoto et al.. The intensity of this peak correlates with the conductivity and magnetization, suggesting it is the driver of metallic behavior. Our study demonstrates a general strategy for using RSXS to probe the electronic properties of heterostructure interfaces.

Original languageEnglish (US)
Article number196404
JournalPhysical review letters
Issue number19
StatePublished - Nov 9 2007

ASJC Scopus subject areas

  • General Physics and Astronomy


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