From antiferromagnetism to superconductivity in Fe1+y(Te1-x,Sex) (0d x d 0.20): Neutron powder diffraction analysis (Articolo in rivista)

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  • From antiferromagnetism to superconductivity in Fe1+y(Te1-x,Sex) (0d x d 0.20): Neutron powder diffraction analysis (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.81.094115 (literal)
Alternative label
  • Martinelli A.; Palenzona A.; Tropeano M.; Ferdeghini C.; Putti M.; Cimberle M. R.; Nguyen T.; Affronte M.; Ritter C. (2010)
    From antiferromagnetism to superconductivity in Fe1+y(Te1-x,Sex) (0d x d 0.20): Neutron powder diffraction analysis
    in Physical review. B, Condensed matter and materials physics; The American Physical Society, College Park, MD 20740-3844 (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Martinelli A.; Palenzona A.; Tropeano M.; Ferdeghini C.; Putti M.; Cimberle M. R.; Nguyen T.; Affronte M.; Ritter C. (literal)
Pagina inizio
  • 094115-1 (literal)
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  • http://link.aps.org/doi/10.1103/PhysRevB.81.094115 (literal)
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  • 81 (literal)
Rivista
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  • In: Physical Review B, vol. 81 article n. 094115. APS, 2010. (literal)
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  • 9 (literal)
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  • 9 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • CNR-SPIN, CNR-SPIN e Dipartimento di Chimica di Genova, CNR-SPIN e Dipartimento di Fisica di Genova, CNR-IMEM, Genova, CNR Istituto di nanoscienze S3 e Dipartimento di Fisica di Modena e Reggio Emilia, Institut Laue Langevin Grenoble France (literal)
Titolo
  • From antiferromagnetism to superconductivity in Fe1+y(Te1-x,Sex) (0d x d 0.20): Neutron powder diffraction analysis (literal)
Abstract
  • The nuclear and magnetic structure of Fe1+y(Te1-x,Sex) (0d x d 0.20) compounds were analyzed between 2 K and 300 K by means of Rietveld refinement of neutron powder diffraction data. The samples with x d 0.075 undergo a tetragonal to monoclinic phase transition at low temperature, whose critical temperature decreases with the increase of Se content; this structural transition is strictly coupled with a long range antiferromagnetic ordering at Fe site. Both monoclinic phase and long range antiferromagnetism are suppressed for 0.10 d x d 0.20. The onsets of the structural and magnetic transitions remain coincident with the increase of Se substitution. The low temperature monoclinic crystal structure has been revised. Superconductivity arises for x d 0.05, therefore a significant region where superconductivity and long range antiferromagnetism coexist is present in the pseudo-binary FeTe - FeSe phase diagram. (literal)
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