Absence of superconductivity in fluorine-doped neptunium pnictide NpFeAsO - Publication - Bridge of Knowledge

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Absence of superconductivity in fluorine-doped neptunium pnictide NpFeAsO

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)

  • Photo of  A Walters

    A Walters

    • Diamond Light Source Limited Diamond House
  • Photo of  Helen Walker

    Helen Walker

    • STFC Rutherford Appleton Laboratory ISIS Neutron and Muon Source
  • Photo of  R. Springell

    R. Springell

    • University of Bristol Interface Analysis Centre
  • Photo of  M Krisch

    M Krisch

    • European Synchrotron Radiation Facility Beamline ID28
  • Photo of  A Bosak

    A Bosak

    • European Synchrotron Radiation Facility Beamline ID28
  • Photo of  Adrian Hill

    Adrian Hill

    • European Synchrotron Radiation Facility Beamline ID31
  • Photo of  C Zvorişte-Walters

    C Zvorişte-Walters

    • European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
  • Photo of  E. Colineau

    E. Colineau

    • European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
  • Photo of  J-C. Griveau

    J-C. Griveau

    • European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
  • Photo of  D Bouëxière

    D Bouëxière

    • European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
  • Photo of  R. Eloirdi

    R. Eloirdi

    • European Commission, Joint Research Centre (JRC) Institute for Transuranium Elements (ITU)
  • Photo of  R. Caciuffo

    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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