Published August 2004
| Version v1
Journal article
Role of apical oxygen in 2-1-4 electron-doped superconductors
Description
We report a crystal-field infrared transmission and Raman study of oxygenated and reduced Nd2-xCexCuO4 single crystals. Some Nd3+ crystal-field absorption bands corresponding to rare-earth ions in non-regular sites are attributed to Nd3+ ions in the vicinity of apical oxygens. This is correlated with a study of the A* (∼580 cm-1) Raman local mode and with the transport properties of undoped materials. We show that the apical oxygen is not removed by the reduction
Additional details
Identifiers
- DOI
- 10.1016/j.physc.2004.03.150;
- PII
- S0921453404005568;
Publishing Information
- Journal Title
- Physica. C, Superconductivity
- Journal Volume
- 408-410
- Journal Issue
- 3-4
- Journal Page Range
- p. 830-831
- ISSN
- 0921-4534
- CODEN
- PHYCE6
Conference
- Title
- International conference on materials and mechanisms of superconductivity and high temperature superconductors
- Acronym
- 7. M2SRIO
- Dates
- 25-30 May 2003
- Place
- Rio de Janeiro (Brazil)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36061881
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ABSORPTION; CERIUM COMPOUNDS; CRYSTAL FIELD; DOPED MATERIALS; ELECTRONS; HIGH-TC SUPERCONDUCTORS; INFRARED SPECTRA; MONOCRYSTALS; NEODYMIUM COMPOUNDS; NEODYMIUM IONS; OXYGEN; RAMAN SPECTRA; RAMAN SPECTROSCOPY
- Descriptors DEC
- CHARGED PARTICLES; CRYSTALS; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; IONS; LASER SPECTROSCOPY; LEPTONS; MATERIALS; NONMETALS; RARE EARTH COMPOUNDS; SORPTION; SPECTRA; SPECTROSCOPY; SUPERCONDUCTORS; TYPE-II SUPERCONDUCTORS
Optional Information
- Copyright
- Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.