Journal article
Presence and spatial distribution of interfacial electronic states in LaMnO3-SrMnO3 superlattices
Physical review. B, v 82(11), 115112
13 Sep 2010
Abstract
We report direct evidence of interfacial states at the onset of O K edge confined to a spatial distance of 1 unit-cell full-width at half maximum at the sharp interfaces between epitaxial films of LaMnO3 and SrMnO3 from electron energy-loss spectroscopy (EELS) measurements. The interfacial states are sensitive to interface sharpness; at rough interfaces with interfacial steps of 1-2 unit cells in height, experimental data shows a reduction, or suppression, of the interfacial states. The EELS measurements were performed using a fine electron probe obtained by electron lens aberration correction. By scanning the electron probe across the interface, we are able to map the spatial distribution of the interfacial states across interfaces at high resolution.
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Details
- Title
- Presence and spatial distribution of interfacial electronic states in LaMnO3-SrMnO3 superlattices
- Creators
- A. B. Shah - University of Illinois Urbana-ChampaignQ. M. Ramasse - Lawrence Berkeley National LaboratoryS. J. May - Argonne National LaboratoryJerald Kavich - Argonne National LaboratoryJ. G. Wen - University of Illinois Urbana-ChampaignX. Zhai - University of Illinois Urbana-ChampaignJ. N. Eckstein - University of Illinois Urbana-ChampaignJ. Freeland - Argonne National LaboratoryA. Bhattacharya - Argonne National LaboratoryJ. M. Zuo - University of Illinois Urbana-Champaign
- Publication Details
- Physical review. B, v 82(11), 115112
- Publisher
- Amer Physical Soc
- Number of pages
- 10
- Grant note
- National Center for Electron Microscopy DE-FG02-07ER46453; DE-FG02-07ER46471; DE-AC02-05CH11231 / U.S. Department of Energy; United States Department of Energy (DOE) DE-AC02-06CH11357 / Office of Basic Energy Sciences, U.S. Department of Energy; United States Department of Energy (DOE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000281773700001
- Scopus ID
- 2-s2.0-77957682352
- Other Identifier
- 991021934209104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Physics, Applied
- Physics, Condensed Matter