Electronic Reconstruction at SrMnO3-LaMnO3 Superlattice Interfaces

Smadici, S; Abbamonte, P; Bhattacharya, A; Zhai, X; Jiang, B; Rusydi, A; Eckstein, J; Bader, S; Zuo, J

doi:10.1103/PhysRevLett.99.196404

Title: Electronic Reconstruction at SrMnO3-LaMnO3 Superlattice Interfaces

Journal Article · Mon Jan 01 00:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.99.196404· OSTI ID:959528

Smadici, S; Abbamonte, P; Bhattacharya, A; Zhai, X; Jiang, B; Rusydi, A; Eckstein, J; Bader, S; Zuo, J

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.

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Research Organization:: Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source

Sponsoring Organization:: Doe - Office Of Science

DOE Contract Number:: DE-AC02-98CH10886

OSTI ID:: 959528

Report Number(s):: BNL-82514-2009-JA; PRLTAO; TRN: US201016%%672

Journal Information:: Physical Review Letters, Vol. 99; ISSN 0031-9007

Country of Publication:: United States

Language:: English

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