Published June 2005
| Version v1
Journal article
Simultaneous spin-state-insulator-metal transition in Pr0.5Ca0.5CoO3
Creators
- 1. Department of Applied Physics, Tokyo University of Science, Shinjuku-ku, Tokyo 162-8601 (Japan)
- 2. Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503 (Japan)
- 3. Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526 (Japan)
- 4. Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-8526 (Japan)
Description
We report the first observation of a distinct change in the electronic structure due to a 'pure' low-spin-to-intermediate-spin (LS-IS) transition accompanied by an insulator-metal transition in Pr0.5Ca0.5CoO3 by high-resolution photoemission spectroscopy. With increase in T, the distinct Co 3d LS peak just below the Fermi level (E F) rapidly collapses at ∼80 K, whose spectral weight is transferred into the very near-E F region, forming small coherent spectral weight. In connection with a cluster-model analysis, this change can be interpreted as an LS-to-IS spin-state transition accompanied by a metal-insulator transition
Additional details
Identifiers
- DOI
- 10.1016/j.elspec.2005.01.225;
- PII
- S0368-2048(05)00285-9;
Publishing Information
- Journal Title
- Journal of Electron Spectroscopy and Related Phenomena
- Journal Volume
- 144-147
- Journal Page Range
- p. 893-895
- 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
- 37039894
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CALCIUM COMPOUNDS; COBALT OXIDES; ELECTRONIC STRUCTURE; EMISSION SPECTROSCOPY; FERMI LEVEL; PHOTOEMISSION; PRASEODYMIUM COMPOUNDS; RESOLUTION; SPIN
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ANGULAR MOMENTUM; CHALCOGENIDES; COBALT COMPOUNDS; EMISSION; ENERGY LEVELS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; RARE EARTH COMPOUNDS; SECONDARY EMISSION; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.