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  Magnetism in tetragonal manganese-rich Heusler compounds

Wollmann, L., Chadov, S., Kübler, J., & Felser, C. (2015). Magnetism in tetragonal manganese-rich Heusler compounds. Physical Review B, 92(6): 064417, pp. 1-4. doi:10.1103/PhysRevB.92.064417.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-3C0B-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-17EA-E
Genre: Journal Article

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 Creators:
Wollmann, L.1, Author              
Chadov, Stanislav2, Author              
Kübler, Jürgen3, Author
Felser, Claudia4, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Stanislav Chadov, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863440              
3External Organizations, ou_persistent22              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: A comprehensive study of the total energy of manganese-rich Heusler compounds using density functional theory is presented. Starting from a large set of cubic parent systems, the response to tetragonal distortions is studied in detail. We single out the systems that remain cubic from those that most likely become tetragonal. The driving force of the tetragonal distortion and its effect on the magnetic properties, especially where they deviate from the Slater-Pauling rule, as well as the trends in the Curie temperatures, are highlighted. By means of partial densities of states, the electronic structural changes reveal the microscopic origin of the observed trends. We focus our attention on the magnetocrystalline anisotropy and find astonishingly high values for tetragonal Heusler compounds containing heavy transition metals accompanied by low magnetic moments, which indicates that these materials are promising candidates for spin-transfer-torque magnetization-switching applications.

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Language(s): eng - English
 Dates: 2015-08-182015-08-18
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1103/PhysRevB.92.064417
 Degree: -

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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: 92 (6) Sequence Number: 064417 Start / End Page: 1 - 4 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008