In situ angle-resolved photoemission study of half-metallic La0.6Sr0.4MnO3 thin films
Creators
- 1. Department of Applied Chemistry, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
- 2. Department of Complexity Science and Engineering and Department of Physics, University of Tokyo, Kashiwa 277-8561 (Japan)
- 3. Department of Physics, Tokyo University of Science, Chiba 278-8510 (Japan)
- 4. Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581 (Japan)
- 5. Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801 (Japan)
- 6. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
- 7. National Institute for Materials Science, Tsukuba 305-0047 (Japan)
Description
We have performed an in situ angle-resolved photoemission spectroscopy (ARPES) on single-crystal surfaces of La0.6Sr0.4MnO3 (LSMO) thin films to investigate the electronic structure near the Fermi level (EF). ARPES spectra near EF reveal the existence of a dispersive Mn-3d derived conduction band indicative of an electron pocket centered at the Γ point. Comparing the experimental band structure with the local density approximation + U band-structure calculation, the estimated size of the Fermi surface is consistent with the prediction of the calculation, while the measured bandwidth is significantly narrower than the calculation. The discrepancy between the two suggests that the renormalization effect is significant due to the strong electron correlation in LSMO
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2006.10.226;
- PII
- S0304-8853(06)01411-9;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 310
- Journal Issue
- 2
- Journal Page Range
- p. 1030-1032
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- 17. international conference on magnetism
- Dates
- 20-25 Aug 2006
- Place
- Kyoto (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39027156
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- APPROXIMATIONS; ELECTRON CORRELATION; ELECTRONIC STRUCTURE; ELECTRONS; FERMI LEVEL; LANTHANUM COMPOUNDS; MANGANESE OXIDES; MOLECULAR BEAM EPITAXY; MONOCRYSTALS; PHOTOEMISSION; RENORMALIZATION; SPECTRA; SPECTROSCOPY; STRONTIUM COMPOUNDS; SURFACES; THIN FILMS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CALCULATION METHODS; CHALCOGENIDES; CORRELATIONS; CRYSTAL GROWTH METHODS; CRYSTALS; ELEMENTARY PARTICLES; EMISSION; ENERGY LEVELS; EPITAXY; FERMIONS; FILMS; LEPTONS; MANGANESE COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SECONDARY EMISSION; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.