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Abstract
X-ray diffraction, specific heat, magnetic susceptibility and inelastic x-ray scattering measurements on the transurarium oxypnictides NpFeAsO and NpFeAsO0.85F0.15 are presented. No superconductivity down to 2 K was observed upon fluorine doping, contrary to the structurally analogous rare-earth pnictides. No modification of the phonon density of states was observed upon doping with fluorine. We discuss our results in light of the latest experimental and theoretical studies on the role of phonons in the superconducting pnictide compounds.
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Authors (13)
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A Walters
- Diamond Light Source Limited Diamond House
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Helen Walker
- STFC Rutherford Appleton Laboratory ISIS Neutron and Muon Source
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R. Springell
- University of Bristol Interface Analysis Centre
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M Krisch
- European Synchrotron Radiation Facility Beamline ID28
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A Bosak
- European Synchrotron Radiation Facility Beamline ID28
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Adrian Hill
- European Synchrotron Radiation Facility Beamline ID31
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C Zvorişte-Walters
- European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
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E. Colineau
- European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
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J-C. Griveau
- European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
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D Bouëxière
- European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
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R. Eloirdi
- European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
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R. Caciuffo
- European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
JOURNAL OF PHYSICS-CONDENSED MATTER
no. 27,
edition 32,
pages 1 - 8,
ISSN: 0953-8984 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Walters A., Walker H., Springell R., Krisch M., Bosak A., Hill A., Zvorişte-Walters C., Colineau E., Griveau J., Bouëxière D., Eloirdi R., Caciuffo R., Klimczuk T.: Absence of superconductivity in fluorine-doped neptunium pnictide NpFeAsO// JOURNAL OF PHYSICS-CONDENSED MATTER. -Vol. 27, iss. 32 (2015), s.1-8
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/0953-8984/27/32/325702
- Verified by:
- Gdańsk University of Technology
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