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  Effect of Pt substitution on the magnetocrystalline anisotropy of Ni2MnGa: A competition between chemistry and elasticity

Caron, L., Dutta, B., Devi, P., Ghorbani Zavareh, M., Hickel, T., Cabassi, R., et al. (2017). Effect of Pt substitution on the magnetocrystalline anisotropy of Ni2MnGa: A competition between chemistry and elasticity. Physical Review B, 96(5): 054105, pp. 1-6. doi:10.1103/PhysRevB.96.054105.

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Caron, L.1, Autor           
Dutta, B.2, Autor
Devi, P.1, Autor           
Ghorbani Zavareh, M.1, Autor           
Hickel, T.2, Autor
Cabassi, R.2, Autor
Bolzoni, F.2, Autor
Fabbrici, S.2, Autor
Albertini, F.2, Autor
Felser, C.3, Autor           
Singh, S.1, Autor           
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2External Organizations, ou_persistent22              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Zusammenfassung: The magnetocrystalline anisotropy (MAE) of Ni2- x Pt-x MnGa(0 <= x <= 0.25) alloys are investigated using the singular point detection technique and density functional theory. A slight reduction in MAE as compared to that of Ni2MnGa is observed due to Pt substitution. The calculated MAE varies almost linearly with the orbital moment anisotropy. A competition between the elastic and the chemical contributions explains the observed trend of the MAE with increasing Pt content. The large MAE in combination with the previously reported increase of the martensitic transition temperature makes these alloys promising candidates for ferromagnetic shape memory applications near room temperature.

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Sprache(n): eng - English
 Datum: 2017-08-072017-08-07
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000407014100001
DOI: 10.1103/PhysRevB.96.054105
 Art des Abschluß: -

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Titel: Physical Review B
  Kurztitel : Phys. Rev. B
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: Woodbury, NY : American Physical Society
Seiten: - Band / Heft: 96 (5) Artikelnummer: 054105 Start- / Endseite: 1 - 6 Identifikator: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008