Electronic Reconstruction at SrMnO3-LaMnO3 Superlattice Interfaces
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
- Sponsoring Org.:
- Doe - Office Of Science
- OSTI Identifier:
- 959528
- Report Number(s):
- BNL-82514-2009-JA
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US201016%%672
- DOE Contract Number:
- DE-AC02-98CH10886
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 99; Journal ID: ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; FERMI LEVEL; FERROMAGNETISM; MAGNETIZATION; REFLECTION; SCATTERING; SUPERLATTICES; TITANATES; national synchrotron light source
Citation Formats
Smadici, S, Abbamonte, P, Bhattacharya, A, Zhai, X, Jiang, B, Rusydi, A, Eckstein, J, Bader, S, and Zuo, J. Electronic Reconstruction at SrMnO3-LaMnO3 Superlattice Interfaces. United States: N. p., 2007.
Web. doi:10.1103/PhysRevLett.99.196404.
Smadici, S, Abbamonte, P, Bhattacharya, A, Zhai, X, Jiang, B, Rusydi, A, Eckstein, J, Bader, S, & Zuo, J. Electronic Reconstruction at SrMnO3-LaMnO3 Superlattice Interfaces. United States. https://doi.org/10.1103/PhysRevLett.99.196404
Smadici, S, Abbamonte, P, Bhattacharya, A, Zhai, X, Jiang, B, Rusydi, A, Eckstein, J, Bader, S, and Zuo, J. 2007.
"Electronic Reconstruction at SrMnO3-LaMnO3 Superlattice Interfaces". United States. https://doi.org/10.1103/PhysRevLett.99.196404.
@article{osti_959528,
title = {Electronic Reconstruction at SrMnO3-LaMnO3 Superlattice Interfaces},
author = {Smadici, S and Abbamonte, P and Bhattacharya, A and Zhai, X and Jiang, B and Rusydi, A and Eckstein, J and Bader, S and Zuo, J},
abstractNote = {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.},
doi = {10.1103/PhysRevLett.99.196404},
url = {https://www.osti.gov/biblio/959528},
journal = {Physical Review Letters},
issn = {0031-9007},
number = ,
volume = 99,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}
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