Published December 2010
| Version v1
Journal article
Photoemission study of Ca-intercalated graphite superconductor CaC6
Creators
- 1. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, Okayama 700-8530 (Japan)
- 2. Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530 (Japan)
- 3. Japan Synchrotron Radiation Research Institute (JASRI)/SPring-8, Hyogo 679-5198 (Japan)
- 4. Research Laboratory for Surface Science (RLSS), Okayama University, Okayama 700-8530 (Japan)
- 5. National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0047 (Japan)
- 6. Faculty of Engineering, Oita University, Oita 870-1192 (Japan)
- 7. Department of Quantum Matter, Graduate School of Advanced Sciences of Matter (ADSM), Higashi-Hiroshima, Hiroshima 739-8530 (Japan)
Description
In this work, we have performed resonant photoemission studies of Ca-intercalated graphite superconductor CaC6. Using photon energy of the Ca 2p-3d threshold, the photoemission intensity of the peak at Fermi energy (EF) is resonantly enhanced. This result provides spectroscopic evidence for the existence of Ca 3d states at EF, and strongly supports that Ca 3d state plays a crucial role for the superconductivity of this material with relatively high Tc.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physc.2009.10.039Additional details
Identifiers
- DOI
- 10.1016/j.physc.2009.10.039;
- PII
- S0921-4534(09)00597-8;
Publishing Information
- Journal Title
- Physica. C, Superconductivity
- Journal Volume
- 470
- Journal Issue
- Suppl.1
- Journal Page Range
- p. S637-S638
- ISSN
- 0921-4534
- CODEN
- PHYCE6
Conference
- Title
- 9. international conference on materials and mechanisms of superconductivity
- Dates
- 7-12 Sep 2009
- Place
- Tokyo (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42075884
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CALCIUM CARBIDES; CALCIUM COMPOUNDS; ENERGY LEVELS; GRAPHITE; PHOTOEMISSION; PHOTONS; SPECTROSCOPY; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TRANSITION TEMPERATURE
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BOSONS; CALCIUM COMPOUNDS; CARBIDES; CARBON; CARBON COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; EMISSION; MASSLESS PARTICLES; MINERALS; NONMETALS; PHYSICAL PROPERTIES; SECONDARY EMISSION; THERMODYNAMIC PROPERTIES
Optional Information
- Copyright
- Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.