Spatial distribution of transferred charges across the heterointerface between perovskite transition metal oxides LaNiO3 and LaMnO3
Creators
- 1. Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba 305-0801 (Japan)
- 2. Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 (Japan)
- 3. Department of Physics, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
- 4. National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044 (Japan)
Description
To investigate the interfacial charge-transfer phenomena between perovskite transition metal oxides LaNiO3 (LNO) and LaMnO3 (LMO), we have performed in situ x-ray absorption spectroscopy (XAS) measurements on LNO/LMO multilayers. The Ni-L2,3 and Mn-L2,3 XAS spectra clearly show the occurrence of electron transfer from Mn to Ni ions in the interface region. Detailed analysis of the thickness dependence of these XAS spectra has revealed that the spatial distribution of the transferred charges across the interface is significantly different between the two constituent layers. The observed spatial distribution is presumably described by the charge spreading model that treats the transfer integral between neighboring transition metal ions and the Coulomb interaction, rather than the Thomas–Fermi screening model.
Additional details
Identifiers
- DOI
- 10.1063/1.4944418;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 108
- Journal Issue
- 11
- Journal Page Range
- p. 111603-111603.5
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 48035985
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; ELECTRON TRANSFER; LANTHANUM COMPOUNDS; LAYERS; MANGANATES; NICKEL IONS; OXIDES; PEROVSKITE; SPATIAL DISTRIBUTION; SPECTRA; THICKNESS; THOMAS-FERMI MODEL; TRANSITION ELEMENTS; X-RAY SPECTROSCOPY
- Descriptors DEC
- ATOMIC MODELS; CHALCOGENIDES; CHARGED PARTICLES; DIMENSIONS; DISTRIBUTION; ELEMENTS; IONS; MANGANESE COMPOUNDS; MATHEMATICAL MODELS; METALS; MINERALS; OXIDE MINERALS; OXYGEN COMPOUNDS; PEROVSKITES; RARE EARTH COMPOUNDS; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
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