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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Evidence for strong itinerant spin fluctuations in the normal state of CeFeAsO0.89F0.11 iron-oxypnictide superconductors
Physical Review Letters, Volume 101, No. 26, Article 267001, Year 2008
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Description
The electronic structure in the normal state of CeFeAsO0.89F0.11 oxypnictide superconductors has been investigated with x-ray absorption and photoemission spectroscopy. All of the data exhibit signatures of Fe d-electron itinerancy. Exchange multiplets appearing in the Fe 3s core level indicate the presence of itinerant spin fluctuations. These findings suggest that the underlying physics and the origin of superconductivity in these materials are likely to be quite different from those of the cuprate high-temperature superconductors. These materials provide opportunities for elucidating the role of magnetic fluctuations in high-temperature superconductivity. © 2008 The American Physical Society.
Authors & Co-Authors
Bondino, Federica
Italy, Rome
Consiglio Nazionale Delle Ricerche
Magnano, Elena
Italy, Rome
Consiglio Nazionale Delle Ricerche
Malvestuto, Marco
Italy, Basovizza
Elettra-sincrotrone Trieste S.c.p.a.
Parmigiani, Fulvio
Italy, Rome
Consiglio Nazionale Delle Ricerche
Italy, Trieste
Università Degli Studi Di Trieste
McGuire, Michael A.
United States, Oak Ridge
Oak Ridge National Laboratory
Singh, David Joseph
United States, Oak Ridge
Oak Ridge National Laboratory
Statistics
Citations: 105
Authors: 6
Affiliations: 5
Identifiers
Doi:
10.1103/PhysRevLett.101.267001
ISSN:
10797114