Photoemission and core-level magnetic circular dichroism studies of diluted magnetic semiconductors
Creators
- 1. Department of Complexity Science and Engineering, Universtiy of Tokyo, 1-5-1 Kashiwanoha, Kashiwa, Chiba 277-8561 (Japan) and Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute, SPring-8, Mikazuki, Hyogo 679-5148 (Japan)
- 2. Department of Applied Chemistry, University of Tokyo, 7-3-1 Hongo, Bunkyou-ku, Tokyo 113-8656 (Japan)
- 3. Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute, SPring-8, Mikazuki, Hyogo 679-5148 (Japan)
- 4. Department of Complexity Science and Engineering, Universtiy of Tokyo, 1-5-1 Kashiwanoha, Kashiwa, Chiba 277-8561 (Japan)
- 5. Photon Factory, IMSS, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305 (Japan)
- 6. Department of Electronic Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
Description
An overview is given on the photoemission studies of the electronic structure of diluted magnetic semiconductors (DMS's), in particular of the prototypical ferromagnetic DMS Ga1-xMnxAs. Configuration-interaction cluster-model analyses of the photoemission data allow us to estimate the p-d exchange coupling constant and hence to predict how to increase the Curie temperature in new materials. Spectra near the Fermi level combined with the transport and optical properties suggest a highly incoherent metallic state for the ferromagnetic metallic phase. It is shown that new insight into the chemically and magnetically inhomogeneous states of DMS's can be gained by the temperature and magnetic field dependence of core-level magnetic circular dichroism signals
Additional details
Identifiers
- DOI
- 10.1016/j.elspec.2005.01.212;
- PII
- S0368-2048(05)00295-1;
Publishing Information
- Journal Title
- Journal of Electron Spectroscopy and Related Phenomena
- Journal Volume
- 144-147
- Journal Page Range
- p. 701-705
- ISSN
- 0368-2048
- CODEN
- JESRAW
Conference
- Title
- 14. international conference on vacuum ultraviolet radiation physics
- Acronym
- VUV 14
- Dates
- 19-23 Jul 2004
- Place
- Cairns (Australia)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37039850
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CONFIGURATION INTERACTION; COUPLING CONSTANTS; CURIE POINT; ELECTRONIC STRUCTURE; EMISSION SPECTRA; FERMI LEVEL; GALLIUM ARSENIDES; MAGNETIC CIRCULAR DICHROISM; MAGNETIC FIELDS; MAGNETIC SEMICONDUCTORS; MANGANESE COMPOUNDS; OPTICAL PROPERTIES; PHOTOEMISSION
- Descriptors DEC
- ARSENIC COMPOUNDS; ARSENIDES; DICHROISM; EMISSION; ENERGY LEVELS; GALLIUM COMPOUNDS; MATERIALS; PHYSICAL PROPERTIES; PNICTIDES; SECONDARY EMISSION; SEMICONDUCTOR MATERIALS; SPECTRA; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.