Crystal Structures of Modulated Martensitic Phases of FSM Heusler Alloys (Articolo in rivista)

Type
Label
  • Crystal Structures of Modulated Martensitic Phases of FSM Heusler Alloys (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.4028/www.scientific.net/MSF.684.105 (literal)
Alternative label
  • Righi, Lara; Albertini, Franca; Fabbrici, Simone; Paoluzi, Antonio (2011)
    Crystal Structures of Modulated Martensitic Phases of FSM Heusler Alloys
    in Materials science forum; Trans Tech Publications, Zurich (Svizzera)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Righi, Lara; Albertini, Franca; Fabbrici, Simone; Paoluzi, Antonio (literal)
Pagina inizio
  • 105 (literal)
Pagina fine
  • 116 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 684 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Parma; Consiglio Nazionale delle Ricerche (CNR) (literal)
Titolo
  • Crystal Structures of Modulated Martensitic Phases of FSM Heusler Alloys (literal)
Abstract
  • Multifunctional ferromagnetic shape memory Heusler alloys are frequently characterized by structural modulation in martensitic phases. In particular, modulated martensitic phases, showing the higher magnetic field induced strain (MFIS) performance, are the most promising candidates for technological applications. Depending on the composition, as well as pressure and temperature conditions, this periodic structural distortion, consisting of shuffling of atomic layers along defined crystallographic directions, accompanies the martensitic transformation. Over the years, different Ni-Mn-Ga modulated martensitic structures have been observed and classified depending upon the periodicity of corresponding ideal nM superstructure (where n indicates the number of basic unit cells constituting the superlattices). On the other hand, it has been demonstrated that in most cases such structural modulation is incommensurate and the crystal structure has been fully determined by applying superspace formalism. The results, obtained by structure refinements on powder diffraction data, suggest a unified crystallographic description of the modulated martensitic structures, here presented, where every different \"nM\" periodicity can be straightforwardly represented. (literal)
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