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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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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-D721-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-D765-1
Genre: Journal Article

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 Creators:
Caron, L.1, Author              
Dutta, B.2, Author
Devi, P.1, Author              
Ghorbani Zavareh, M.1, Author              
Hickel, T.2, Author
Cabassi, R.2, Author
Bolzoni, F.2, Author
Fabbrici, S.2, Author
Albertini, F.2, Author
Felser, C.3, Author              
Singh, S.1, Author              
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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 Abstract: 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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Language(s): eng - English
 Dates: 2017-08-072017-08-07
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 96 (5) Sequence Number: 054105 Start / End Page: 1 - 6 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008